Vigilante Execution

""Maybe no jury would convict you on that, but I would. I'm the jury now, and the judge, and I have a promise to keep. Beautiful as you are; as much as I almost loved you, I sentence you to death.""

- I, the Jury by Mickey Spillane

The court is dismissed. The defendant, Dr. McEvilpants, is set free thanks to a lack of evidence, suspiciously missing witnesses who fell down an elevator shaft, onto some bullets, and a jury that just got a significant increase in spending cash. As he leaves the courthouse steps, a Vigilante Man, often a victim or loved one of the victim (if not someone who's simply determined to see justice served), shows up and shoots him. The gunman just carried out a Vigilante Execution.

This can be either the ending to a story, or the setup for a second half or prelude to a larger plot.

See also: The Killer Becomes the Killed, Vigilante Man, Framing the Guilty Party.

Anime and Manga

 * This is Lunatic's trademark in Tiger and Bunny, and it's what sets him apart from the heroes, who only seek to arrest criminals for points.

Comic Books

 * Magog shoots the Joker in Kingdom Come in a manner similar to this—the Joker wouldn't have walked, but he would possibly had pleaded insanity. Again.
 * Happens to Speedball about halfway through the Marvel Civil War. He survives, though.
 * Detective John Hartigan from Sin City tried to kill Junior Rourke as opposed to arresting him for this very reason. Unfortunately, it didn't quite happen as planned.

Film

 * The Boondock Saints ends with the execution of the Big Bad, a Mafia boss, in the courtroom by the McManus brothers and their long-lost father. They get away with thanks to some inside help from Agent Smecker.
 * This is the premise of Death Sentence. When Kevin Bacon finds out that his son's murderer faces a maximum of 3 years, he pretends not to recognize the perp in court, so that later on he can track him down and kill him. This ends up backfiring. Badly.
 * Pre-empted in L.A. Confidential, where Exley kills Dudley because he's sure that if given a jury trial, he'll be acquitted. Ironically enough, in their first onscreen conversation, Dudley asks Exley if he's capable of such an act, and Exley demurs.
 * In New Jack City, druglord Nino Brown walks arrogantly out of the courtroom in front of the police protagonists, confident he will not serve a sentence commensurate with his crimes. The old man who was hounding Brown throughout the film for destroying his neighborhood with his drug trade shoots him dead in the courthouse foyer.
 * Eraser - where Arnie kills off the Big Bad in this manner, when it becomes clear he will never be convicted.
 * Shooter - where the protagonist, who have been cleared of all charges, hunts down the villains, and kills them in their cabin - making the entire thing look like a gas leak.
 * At least so long as no one examines the burnt wreckage for the lots and lots of bullets he fired there first.
 * Combine this trope with a torch-and-pitchfork mob attack, and you get how Freddy Krueger died, at least the first time around.
 * In Outrage, Robert Preston is a father whose daughter was raped and murdered by a man who is released on a technicality because the police made a mistake. After his wife dies because of the trauma of learning their daughter's murderer has gotten off Scott Free, he buys a gun, drives to the area of town where the man generally hangs out, calls out his name, and when he responds, shoots and kills him.
 * In The Departed,
 * Law Abiding Citizen has Clyde doing this to everyone involved with the death of his family and the miscarriage of justice that followed.
 * The remake/reboot of Shaft ends this way
 * In Batman Begins of The Dark Night Saga Bruce Wayne is about to shoot Joe Chill, the murderer of his parents, who is being released in exchange for information on Falcone. What stops him is Joe being shot by Falcone first. So then Bruce goes off and becomes Batman.

Literature

 * The premise behind And Then There Were None.
 * The ending of every Mike Hammer novel.
 * Most of the 'Home End' of Tom Clancy's Without Remorse consists of an extended series of these ... entirely justified as you would expect from J. T. Kelly.
 * A Time to Kill follows the trial of the vigilante executioner after he does this. Samuel L. Jackson would like you to know that, Yes, they deserved to die and he hopes they burn in hell.
 * In the Dale Brown novel Wings of Fire, Chris Wohl kills, who Might as Well Not Be in Prison At All.
 * In Shadow Command Patrick McLanahan kills, who for obvious reasons would not be prosecuted, face-to-face.
 * The Saint in New York opens with Simon Templar gunning down a murderer on the sidewalk outside the courthouse.
 * Happens frequently in the John Sandford Prey series, usually with the protagonist, Lucas Davenport, claiming self defense after gunning the perp down.

Live-Action TV

 * An episode of Walker, Texas Ranger had three cops who did this to criminals they feel didn't get the punishment they deserved. It seems like they're doing a noble task until they kill a kid that really didn't do the crime they thought he did, DNA evidence exonerated him, but the cops never checked.
 * Before that they fire-bombed a prison bus that had to have had guards as well as prisoners on board. The poor driver goes out a window to escape the flames.
 * The Law and Order franchise loves this trope. While parodies tend to exaggerate the propensity for defendants to die in this fashion, they are gunned down way out of proportion compared to reality. What kind of security do they have at the NYC Supreme Court, anyway?
 * One episode featured a crazed Strawman Conservative who stole a bunch of embryos from a fertility clinic because the clinic personnel wouldn't implant the embryos with terminal diseases. The embryos expire and the widower of one of their donors shoots him.
 * An episode of Law and Order Special Victims Unit had a child molester who actually reformed. He was framed for a murder-rape and got off, but then someone shot him.
 * In yet another episode, a sociopathic killer child was going to be released and the victim's father shoots him. The rest of the episode asks the question of whether he was temporarily insane at the time or not.
 * Another episode plays with it; a girl is kidnapped and murdered, and a previously convicted rapist is arrested for the crime. The girl's mother brings a gun to court and shoots him at the arraignment. Everyone supports her and is lenient to her, because she's killed the man who killed her daughter - until it's revealed that she and her lover actually hired the man to kidnap her daughter, in order to spite her ex-husband. She wasn't avenging her daughter, but silencing a witness.
 * Another one: a man kills the assassin of his child and four others and is sent to prison as well, despite McCoy's efforts to bring up lesser charges. The creepy part, though? The killer's Amoral Attorney had actually sent him information about the other man's release, manipulating the guy into killing the culprit so she could make herself look good by defending him (she was running for political office). McCoy and his team get a spectacular revenge by foiling the last part of her plan and getting the lawyer indicted for murder and conspiracy.
 * And yet another one, from SVU. A rather stupid teenage boy sneaks into a TV starlet's dressing room and rapes her when he finds her sleeping and drunk, under the influence of a radio show host a la Howard Stern. The kid's Knight Templar Parent of a mother shoots (though does not kill) the host when her son is found guilty.
 * It turns out he was just as much a "Well Done, Son" Guy and the mom (who's a Moral Guardian in every sense of the word) used the shooting to fuel her own campaign that has completely taken over her life, so it's a subversion where the supposed execution was a publicity stunt.
 * And another (get a pattern?) SVU example, a girl was raped and murdered by a club owner. Elliot for some god damn reason decides to tell the girl's father that they do not have enough evidence to charge the club owner, so the father decides to kill the man and then gets shot himself.
 * From the core series, a team of brutal home invaders had killed ADA Borgia, and they were connected to a corrupt federal agent. After going through immense pains to try and keep the agent in custody as he tries to get evidence, McCoy lets him go. However, the killers, believing he talked, gun him down in broad daylight; and the police capture them.
 * In the Criminal Intent episode "World's Fair", one of the suspects (the boyfriend of the victim) goes to her family with the intention of assuring them he didn't do it. The victim's brother gets confrontational and the boyfriend ends up being shot by the victim's father (who believed he did it). It turns out that.
 * A recent episode of SVU had the guy's own lawyer, after getting him off, gun him down because he (supposedly) said he would go kill more kids.
 * Possibly the first example in the Season One episode "The Torrents Of Greed" had Stone going out of his way to get a mob boss. After making the arrest, the mob boss makes bail, only to be gunned down by assassins. His sister put up the bail and had him killed in revenge for her husband's murder. While the detectives are glad to have him off the street, they are aware that his death will bring about more violence.
 * Perhaps the most messed up case of this appeared in the season 13 episode Spiralling Down. A retired football star gets gunned down on the steps of the court after having been found not guilty of statutory rape of an underage prostitute by reason of insanity (the prostitute never divulged her age, but it's made clear that isn't a defense). Standard fare right? Well, this retired football star was suffering from severe dementia from repeated concussions, so by the end of a day would become so disoriented that he could barely hold a conversation for more than two sentences before he forgot what he was talking about. They let him off with an insanity defence, but the guy manages to realize that his dementia let him get away with having sex with an underage prostitute... so he grabs a gun off a police officer and executes himself.
 * This trope was used so often that when Robot Chicken did a skit on the show (with anthropomorphic chickens of all things), this was the fate of the murderer.
 * "BA-KAAAAAW!"
 * The X-Files episode "Release": Doggett is in a bar, talking to the man he knows killed his son, but hasn't got enough evidence to arrest him. As the suspect leaves the bar, he is shot by Follmer, who had been taking bribes from him in his early days.
 * Happened once in NCIS where the man they were pursuing turned out to be too valuable to the CIA to be arrested, despite being a murderer and all-around disgusting person. As soon as they let him go, NCIS headquarters receives a live video transmission from an unknown source. They watch as the man walks out of the building and promptly drops from a bullet to the forehead, fired from behind the camera.
 * Happens again later, when it looks like a crime lord is going to walk after having two Marines tortured to death after they witness a shooting. Their comrade (who had lied and claimed to be the witness in order to protect them) can't stand it, and shoots him outside the courthouse.
 * In one episode, the killer was a gang member telling everyone that he was getting messages from the boss. Turns out he had killed the boss and caused the death of other members in the gang along with a marine. Unable to pin him for the crimes, Gibbs shows what he has done to other members of the gang and tells them that he would never be convicted. He then drops the man off at the gang's place. You see him slowly being surrounded by other members. Cue next scene at NCIS headquaters where on TV it says his body was found ridden with bullets.
 * Season 3 of 24 sees Big Bad Stephen Saunders  before he could be interrogated by CTU.
 * An episode of The Practice played this straight: a man actually helped the man on trial for murdering his wife get off, then hired someone to shoot him on his way out, because he wanted him dead, not in prison.
 * The firm has also defended a number of people who committed vigilante murders.
 * Played with in an episode of Murder City:
 * The Closer: in "Heroic Measures", the DA decides there is no winnable case to be made against the doctors who made a judgement call to let a boy die on the operating table, so while they're walking back to their cars, the mother shoots them.
 * Medium-- "Wicked Game pt 2" ends with Cynthia Keener sitting on the front step waiting for the police to come arrest her for murdering the woman who masterminded her daughter's kidnapping/torture/murder 10 years ago. Though Allison had identified the killers, the case was too old to find evidence, and the woman killed her repentant accomplice before he could confess.
 * An early episode had Allison unable to get involved in a case because Joe was on the jury, but she knew the defendant was guilty of killing his wife. After the defendant was acquitted, Allison led the police to evidence that he was guilty, after which he was killed by his father-in-law, who up until then had been his strongest supporter.
 * In Lost, Ana Lucia doesn't identify the suspect who shot her (killing her unborn child), then guns him down when he's released.
 * In an episode of Carnivale, one of the cooch dancers is murdered by a local bartender. He is subjected to a sort of Russian roulette and lives. After he is allowed to go free, Sampson follows him and shoots him, trapping him in the town of the dead.
 * Subverted quite effectively in Star Trek: Deep Space Nine - when a highly notorious Cardassian war criminal just goes free, he is killed by a Bajoran vigilante.
 * Happens once on CSI, when Catherine stupidly informs the husband of a victim that they suspect the man his wife was having an affair with. The husband shoots the suspect, only for it to turn out that her death was a freak accident.
 * Warrick informed the father of a little girl killed in a drive by that it could have been one of the local gangsters. The father went after the guy. The real killers were some kids that he had thrown out of his youth center.
 * And another one happens to a Serial Killer couple in the two-parter "Assume Nothing"/"All for our Country", though for once it doesn't have any relation with this time Nick stupidly giving information about the case to an old college friend.
 * One episode of CSI: Miami ran this one into the ground, with the mother of a vacationing college student killing the gang-wannabe who'd murdered her son as an initiation. That she was allowed anywhere near the man is particularly egregious, as both of the victim's other close relatives had already threatened or attacked the Red Herring suspect in the case.
 * Happens multiple times on Homicide: Life on the Street, as listed on that page.
 * A variant in Noah's Arc:.
 * Pushing Daisies had this happen to a killer who hadn't even made it to trial; he was on the run from the law when he was tracked down and killed. As far as we know, the protagonists never found out that this happened.
 * Ashes to Ashes subverts this slightly: The Corrupt Corporate Executive defendant seems to get away with buying underage prostitutes and two murders because of being protected by Mac, who has the control over the police unit that investigates the crimes. However - due the fact that Gene and Alex gave him a 'What have you become?' speech earlier - Mac confronts the executive in the hallway after his release and shoots the bastard where he stands. He then turns the gun to himself, but is stopped by Gene before shooting himself.
 * One episode of Criminal Minds features a serial killer who targets people acquitted of murder or manslaughter.
 * In the episode "Reckoner", the killer is a hitman hired by a judge who went nuts  and became obsessed with killing people he deemed to have escaped justice.
 * Early in the second season of the show, the team tracks down a serial rapist, but is unable to arrest him because they have no evidence..
 * "True Nights" plays with this. The unsub is, but doesn't realize he's doing it until Rossi points out the scar on his torso.
 * Also used in "To Hell ... and Back." (The fourth season finale pair) where Hotch doubts his own ability as a prosecutor to convict the (quadriplegic) unsub, which leads to William Hightower shooting the unsub with a shotgun.
 * Modus operandi for Dexter Morgan. Particularly unusual in that he would have been a Serial Killer in any case, but his adoptive father Harry steered him in a "constructive" direction, and gave him pointers on how not to get caught.
 * In the season 2 finale of Veronica Mars,.

Music

 * Naturally, one occurs in Abney Park's "Victorian Vigilante".

Video Games

 * In Condemned, SKX's MO, in a nutshell. He is exactly as inhumane as the killers themselves, to the point where he crosses the Moral Event Horizon.
 * In the RuneScape quest "The Chosen Commander", a H.A.M. agent
 * In Tales of Vesperia, two high ranking nobles (both Complete Monsters) fall "victim" to this trope after kicking one too many dogs and getting away with it. One gets slashed across the chest and dumped into a river, while the other is led by sword point into a quicksand bog and buried alive.
 * The first episode of the Telltale Games series Law and Order: Legacies has one - early in the "Order" segment, a Russian diplomat, whose claim of Diplomatic Immunity is still being determined, is gunned down in the courtroom by the father of the woman he raped and murdered, very narrowly missing Abbie Carmichael. The rest of the game is Michael Cutter's prosecution of the father.

Web Comics

 * In Order of the Stick, Vaarsuvius preemptively executes Kubota as he lays out his plan to get away with his crimes. However, V's interests don't seem to be justice as getting rid of an annoying distraction.
 * The next strips shows that V didn't even know who he was, as he quit paying attention and just made a guess based on parts of his speech.
 * Penny Arcade: "Ain't that a shame."

Western Animation

 * In Superman: Doomsday, Supes doing this to Toyman was the first sign that maybe the Man of Steel hadn't returned from the dead after all.

Real Life

 * Lee Harvey Oswald's assassination by Jack Ruby. Of course, there are still those who believe otherwise...
 * Ellie Nesler.
 * This sort of thing happens all the time in countries where war or internal strife leaves the general public vulnerable to violent crime.
 * Recent examples have begun to pop up in Mexico's on-going war on the drug cartels. Unfortunately, the need for due process rapidly becomes clear.