Considering that we enjoy torturing our characters so much, it's no wonder we have some of these.
- In Parting of Ways, Akiko's cousin Hoshiko jumps in the way of a blade meant to kill Akiko. She ends up dying, and Akiko leaves, shocked. It gets worse once you take into account that Hoshiko was raised to kill Akiko by her father, who was also the one doing the killing.
- The Ryuuins topic.
- His Last Wish ends with Kyousuke detonating to a nuclear overload. Before he does so however, he leaves a heartfelt goodbye and note to Kira. The combination of the two (especially the note) caused everyone online to cry, or at least tear up.