Ricardo Lopez documented his thoughts and feelings in a diary that he left. He wanted attention and he wasn’t getting any of it.

Kevin was immersed in an imaginary relationship with Christina. When she Tweeted that she would be at Plaza Live in Orlando, he took it as a personal invite.

He got out of the car and he was drained, his eyes bloodshot. He kept screaming about blood.

There was one last deal.

A case based on the knowledge of whether or not a weapon was present.

This man had a major mental illness: schizophrenia. But is that the answer?

At a beach photo shoot, the photographers are surprised to find that they were being “shot” too.

In a busy office building, nothing stood out, no leads.

Richard Ramirez’s niece Shelly says her uncle was normal.

Eileen struggled at a young age and became a prostitute to make ends meet.

Gavin stays at a coworker’s place, and it is the last time he is seen by a coworker.

The couple could relate with each other in their struggles, including substance abuse.

Christa Helm knew she had to live like a movie star in order to be a movie star.

An officer finds two girls who claimed to have stabbed their friend.

Martinis & Murder co-host John Thrasher quizzes Soledad O'Brien about everyday crimes.

Take a look inside the Wonderland case.