Wouldn't the mob prefer to use someone of their own, who hasn't proven themselves yet? In order to become made, you need to kill someone for the mafia as far as I know. So why to hire someone from the outside?
I think it's saver for them nowadays to actual hand out these murders to third parties such as street gangs instead of their own people. Even if someone on record gets caught and flips it can bring down a lot of guys. The more buffers the better.
"It was between the brothers Kay -- I had nothing to do with it."
