Heres where i read Franzese went to the prison officials and told them about Hill.

http://cosa-nostra-news.blogspot.com/2011/06/goodfella-henry-hill-star-of-tonights.html

NOTE: One interesting detail: Michael Franzese saved Hill's life when he (Hill) was arrested for dealing and thrown out of Witness Protection. Hill, stupidly, didn't inform the prison about his true identity, though wiseguys in the prison, including Franzese, immediately recognized him. Franzese, an informant in the prison, went to the prison officials and told them about Hill's problem. Hill was berated for idiocy and then given protective custody. If not for Franzese, Hill probably would be dead today.


Thanks Beanshooter.