Eddie Seda, Matthew Milat and Michael Madison are just a handful of killers who claim to have been inspired by other killers.

On February 2, 2008, a man walked into a woman's clothing store in Chicago and shot and killed five women. It's one of the worst mass murders in the city's history, and the murderer is still on the loose.

There's been no shortage of violent crime this decade, either. As the 2010s come to a close, A&E True Crime looks back at the past 10 years—at some of the crime stories that drew the most public attention, and at the criminals the public will long remember.

The true crime audience skews largely female, sparking some to question why the genre is so popular among some women. But in Rachel Monroe's book 'Savage Appetites,' she reverses that gaze, turning the lens toward four women who she thinks embody or challenge four classic archetypes of the genre: Detective, Victim, Defender and Killer.

On July 20, 2012, 12 people were killed and dozens more injured at a midnight showing of Batman: The Dark Knight Rises, when James Holmes opened fire in an Colorado theater. We spoke with forensic psychiatrist Dr. William H. Reid, who did extensive interviews with Holmes, about the mass shooter's mental state.

Quite often it is only in hindsight that the friends and family of a mass-shooting perpetrator realize that the bloodbath was actually the climax of a series of foretelling clues from an angry, violent, paranoid, withdrawn person, who happens to have a  newfound fixation with guns. Such devastating epiphanies beg the question: Can we predict tomorrow's mass shooter?

Dr. Peter Langman, Ph.D, one of the foremost experts in the psychology of school shooting perpetrators, talks to A&E True Crime about who commits these heinous crimes, why they do it and what we can do to prevent the next shooting.

Kristina Anderson, survivor of the Virginia Tech mass shooting, tells her story of that tragic day and how to prepare for an active-shooter scenario.

Celeste and Steven Sanchez recount their experience helping victims at the Las Vegas shooting.