http://www.theage.com.au/articles/2009/01/10/1231004329913.html he played Matt Bevilaqua, one of the two guys working with Chris Moltisanti, and shot Chris as an attempt to move up in the ranks. Guess he tried to live his character's life outside the show. i hear he liked the dolphins.
Those two guys that ran with Chris early on in the show were complete morons. I don't know how a boss could let guys like that move up. They seemed like way too much of a liability.
His friend is the one that shot and killed the officer. He is very lucky to only get convicted of attempted burglary, he should have gotten armed robbery and 20 years. He knew his friend had a gun with him when the left to go out that night. I am extremely sad for the cops family, they will suffer while this scum will be out in 5 years.