All eyes were on Ashton Kutcher as he took the witness stand Wednesday in the trial of Michael Gargiulo, whom prosecutors have dubbed the "Hollywood Ripper." Prosecutors claim Gargiulo butchered Kutcher’s onetime date, Ashley Ellerin, 22, stabbing her 47 times. On the night of her murder in February 2001, Kutcher had invited Ellerin on a dinner date. Kutcher told the court that it was their first date but he was late because he had stopped to watch the Grammys at a friend's house.