After his December 2003 arrest, registered nurse Charlie Cullen was quickly dubbed "The Angel of Death" by the media. But Cullen was no mercy killer, nor was he a simple monster. He was a favorite son, husband, beloved father, best friend, and celebrated caregiver. Implicated in the deaths of as many as 300 patients, he was also perhaps the most prolific serial killer in American history. Cullen's murderous career in the world's most trusted profession...

"A gripping tour de force of investigative journalism that takes us deep into the investigation behind one of the most frightening and enigmatic serial killers in modern American history, and into the ranks of a singular American police force: the Anchorage PD Most of us have never heard of Israel Keyes. But he is one of the most ambitious, meticulous serial killers of modern time. The FBI considered his behavior unprecedented. Described by a prosecutor...