Testimony Begins in 'Hollywood Ripper' Trial

Testimony is scheduled to begin Monday in the trial of the alleged serial killer known as the "Hollywood Ripper." 

Jurors in a Los Angeles courtroom heard from a woman prosecutors say survived a knife attack by the so-called Hollywood Ripper.

He's accused of assaulting one woman and killing two others in the Los Angeles area between 2001 and 2008. 

Ashton Kutcher is expected to testify in the trial  as he was dating one of the alleged victims at the time of her death.

Prosecutors say Michael Gargiulo, the so-called "Hollywood Ripper," targeted young women in Illinois and the L.A. area, killing two -- including a woman who dated actor Ashton Kutcher -- and stabbing another victim.

Gargiulo has been called a "serial sexual thrill killer," allegedly stabbing and butchering his victims. His first alleged victim, a 17-year-old, was found stabbed to death by her father.

Prosecutors say he killed 22-year-old Ashely Ellerin in 2001 at her Hollywood Hills home. At the time, Ellerin was dating Kutcher, who was on his way to pick her up from a party, but she never made it to the door.