He begged prison officials not to release him. He told them he would kill. They let him out anyway.

Nineteen days later, four people were dead in Omaha, Nebraska.

This is the story of Nikko Jenkins—a man failed by every system designed to help him, who then committed one of the most preventable killing sprees in recent memory. It's also the story of four victims: Juan Uribe-Pena, Jorge Cajiga-Ruiz, Curtis Bradford, and Andrea Kruger. Some made headlines. Others were barely mentioned. All deserved justice from the start.

In this episode, Ed and Melissa examine the catastrophic failures that led to tragedy—from a childhood marked by documented mental illness and abuse, to a prison system that ignored years of warnings, to a media landscape that only paid attention when the "right" victim was killed.

This is Block 21: Sentenc ...