Most heartrendingly, the killer of the episode shot at a crowded park and not only missed his target, but also killed his little sister.
A friend of the victim anonymously posts a false confession to having murdered her, complete with a drawing that matches an image that had been drawn on the victim's leg, because he wants to force the police to take another look.
Except, she did that so the victim wouldn't stick around to be killed by the husband if the latter found out about their secret friendship.
Patients who abruptly stop therapy with some antidepressants often experience withdrawal symptoms that can include severe agitation, unusual dreams and night sweats.