When Zack Bowen jumped off the roof of a New Orleans Hotel, his suicide note revealed that his death was an act of atonement for killing his girlfriend, Addie Hall.

A mother and daughter are found brutally murdered inside their Palmerston home. Did the husband do it?

Former nurse William Melchert-Dinkel engaged in online conversations with people – and instructed them on how to take their own lives.

As Shamol Mahmood waited tables, a masked gunman walked into the restaurant and shot him point-blank. Was the killer a local teen? Or was something bigger at play?