Michael Gargiulo at the time of his arrest in the summer of 2008. On Sept. 4, 2008, while already in jail charged with attempted murder for an attack in Santa Monica, Gargiulo was indicted on two additional charges - this time for the murders of Ashley Ellerin and Maria Bruno.
On July 7, 2011, Gargiulo was indicted for the 1999 murder of Tricia Pacaccio in his hometown of Glenview, Illinois.
"48 Hours Mystery": The Boy Next Door
Credit: Los Angeles County Sheriff's Dept.