Serial killer's victims?
Cook County, Ill., officials had been unable to charge Michael Gargiulo with Tricia's murder because of a lack of evidence. He finally skipped town - to California.
[On July 7, 2011, Michael Gargiulo was charged with first-degree murder in Tricia's death.
Man charged with murder in cold case featured on "48 Hours"
"48 Hours Mystery": The Boy Next Door
