The real Annabelle doll reportedly committed a series of attacks in the early 1970s before it was confined in the Occult Museum of Ed and Lorraine Warren in Connecticut.

In February 2000, Katherine Knight stabbed John Charles Thomas Price to death and cooked his remains — then served them to his two children.

From serial killers like Ted Bundy and Jeffrey Dahmer to the slayings of the Manson Family, these real crime scene photos capture history's grisliest murders.

Though he was executed in 1936 for the murder of Grace Budd, serial killer Albert Fish claimed he killed 100 victims and "had children in every state."

Despite mountains of evidence, the mystery of what happened to Roland T. Owen in Room 1046 of the Hotel President in Kansas City remains unsolved to this day.

On March 31, 1922, a mysterious killer murdered a German family of five — Andreas and Cäzilia Gruber, their daughter Viktoria Gabriel, Viktoria's children Cäzilia and Josef — and the family's maid Maria Baumgartner. To this day, the killer has never been identified.

Between 1978 and 1990, Andrei Chikatilo murdered at least 53 people and mutilated their bodies — all while slipping right through the authorities' fingers on multiple occasions.

In April 2014, two Dutch tourists named Kris Kremers and Lisanne Froon went hiking in Panama and never returned. Months later, officials found their bleached bones and disturbing pictures.

From Elisa Lam to Richard Ramirez, the Cecil Hotel's history has been filled with bizarre horrors since it was built in 1924.

On January 15, 1947, 22-year-old aspiring actress Elizabeth Short was found brutally murdered in Los Angeles — with her body cut in half and a ghastly smile carved into her face.

A successful painter who lived in Paris, Einar Wegener would undergo groundbreaking gender-affirming surgeries and live as Lili Elbe before dying in 1931.

Karla Homolka helped her husband Paul Bernardo rape and murder at least three victims between 1990 and 1992 — but she walks free today after serving just 12 years.