The following content contains disturbing accounts of violence. Discretion is advised.
Michael Gargiulo, a California serial killer dubbed by prosecutors "The Boy Next Door Killer," because he lived near the three women he is known to have savagely slain or assaulted, might have gained notoriety for any of his crimes.
It was one, though, that turned him into a media sensation.
On a night in February 2001, Gargiulo went to the home of Ashley Ellerin, 22, a fashion student he had helped out with a few odd jobs, and stabbed her 47 times. Years later, a detective testified that one wound he inflicted was so forceful it penetrated Ellerin's skull and took out a chunk "like a puzzle piece."
On the night she was killed, Ellerin had a casual date planned with actor Ashton Kutcher, whose career was on the rise due to his role in the sitcom "That '70s Show" and the 2000 comedy film "Dude, Where's My Car?"
Nearly two decades later, Kutcher—a literal star witness—spoke in a Los Angeles courtroom about peering into Ellerin's window that evening, after she failed to answer his knocks on the door. He saw what he assumed to be red wine stains on the bungalow floor, he said, but they provoked no alarm. He had mingled with people drinking at a party there a week before.
"At this point, I pretty well assumed she had left for the night, and that I was late, and she was upset," Kutcher said at Gargiulo's trial in May 2019. A roommate discovered Ellerin's body the next day.