Making a Murderer/WMG

Who killed Teresa Halbach?
(From "Making a Murderer: If Steven Avery Didn't Kill Teresa Halbach, Then Who Did?" by LizRaftery - TV.com)

Teresa was one of serial killer Edward Wayne Edwards' victims.
According to John Cameron, "a former police sergeant and member of the FBI's cold case task force".

The entire thing was a frame job by the sheriff department.
"The least credible of the alternative theories. While Making a Murderer is damning to the Manitowoc County Sheriff's Department, and suggests that some investigators may have planted or tampered with evidence, it's a stretch to think that members of the department—no matter how corrupt—would have killed an innocent woman just to get revenge on a troublemaking citizen. Much more plausible? That the department had another suspect or suspects that they neglected to investigate in order to convict Steven Avery."