If you fill a prison with the nation’s most dangerous people, that prison, naturally, will be a dangerous place. And even with Alcatraz Federal Penitentiary's notoriously strong security, those people occasionally strike with sensational violence. We look at some of the most grisly murders that took place at the hands of inmates at 'The Rock.'

When new evidence arises, or new technology becomes available, investigators may need to take a second look at a corpse.

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.

In the early 1970s, Rochester, New York was plagued by a series of unsolved child murders. The three victims each had alliterative names and the killings became known as the 'double initial' or 'alphabet' murders. Will the killer or killers ever be found?

Genealogical DNA databases are helping solve more cold cases. We explore why that could be problematic.

A&E True Crime takes a look at some of the most notable 'black widows,' and the unbelievable lengths they went to off their spouses.

A&E True Crime explores the stories of five young women who were vital members of Charles Manson's cult, 'The Family,' and what became of them after they were separated from the man who had so thoroughly dominated their psyches.

In Season 2 of 'I Am a Killer,' Montana killer Lindsay Haugen talks about what led up to her murdering her boyfriend, Robby Mast, in 2015.

A notorious Boston mob boss serving a life sentence for his part in 11 slayings, James 'Whitey' Bulger, 89, was ailing and confined to a wheelchair on October 30, 2018, when he was slain at the U.S. Penitentiary Hazelton. But the details around his death remain murky.

Veronica Compton tried to murder a woman to make it look like the police had arrested the wrong man, Kenneth Bianchi, in the Hillside Strangler killings.