In a deadly drama that played out in Italy's most fashionable city, the disgruntled ex-wife hired a team of accomplices to take down an heir to the Gucci empire.

From Gary Ridgway's first murder to his eventual capture and arrest, here are the key moments from his killing spree that claimed the lives of at least 48 women.

Dennis Rader tormented his Kansas community with a string of murders and taunted the police who couldn't solve his crimes, but blew his own cover through an insatiable desire for attention.

The intelligent, engaging law student murdered at least 20 women in a spree that spanned the country until his arrest in 1979.

From Dahmer's first arrest to his eventual capture and death, here are the key moments from his 13-year reign of terror.

From Gacy's first sexual assault conviction to his eventual execution, here are the key moments from one of the most notorious murder sprees in U.S. history.

The French filmmaker was murdered in a quiet part of Ireland one night in December 1996, and despite years of investigation, questions remain about who killed her.

The abduction of aviator Charles Lindbergh's young son captivated the country in the 1930s.

From the first slaying to David Berkowitz's eventual capture and confession, here are the key moments from the Son of Sam murder case.

Lyle and Erik provided some much-needed advice to the fallen football star as all three awaited their trials on murder charges in the same Los Angeles prison.

The Utah teen endured rape and other atrocities by a husband-wife team that held her captive for nine months.

Questions still remain about Lee's 1999 murder, as ex-boyfriend Syed continues to serve a life sentence, and the case receiving mass attention from the podcast, 'Serial.'

The gruesome death of 22-year-old Elizabeth Short confounded Los Angeles investigators in the late 1940s and remained a topic of intrigue in the decades that followed.

Though authorities never put the pieces together to find the missing Alabama teen, Joran van der Sloot remains a prime suspect.

Peterson was declared guilty of the crimes in 2004, but in 2020, his death sentence was overturned, setting the stage for a never-ending legal saga.

The young mother raised suspicions with her behavior after the disappearance of her daughter, Caylee, though prosecutors were unable to conclusively tie her to the toddler's death.

The famed literary and celluloid antagonist was based on a Mexican doctor who murdered his boyfriend in 1959.

Vili Fualaau, who famously had an affair with his teacher when he was a teen, recalls the last months of her life before she died of cancer in July 2020.

The world was riveted to the long-running saga of the American exchange student who was accused of killing her roommate.

More than a century after his untimely demise, there are still rumors and legends about how the author met his end.

The Colorado father killed his family in August 2018 and confessed just days later.

Martin Scorsese's 1990 film about Hill and the mafia comes to a climax during the now-infamous Lufthansa Heist.

These Big Apple-based organizations have weathered bloody insurrections, federal convictions and undercover agents through decades of legal and illicit operations.

Found in the basement of her Colorado home the day after Christmas 1996, the truth behind the 6-year-old girl’s killing remains a mystery to this day.