yes and yes

" In June, 1995 Greg Scarpa Jr. assaulted Luchese Family Godfather Vittorio Amuso at the federal prison in Terre Haute, Indiana, after Amuso had chided, "Your father was a rat! You should be ashamed!" Despite Amuso’s incarceration, he still maintains his position as head of the Luchese family and a seat on the Mob’s governing body "The Commission." As such, all five Families put out contracts on the life of young Scarpa, who was serving a 20-year sentence for drug trafficking. To keep him alive, the government transferred Scarpa to solitary confinement at the Metropolitan Correctional Center in Manhattan, where he would face additional charges of murder and racketeering. By then, Federal authorities had admitted that his father had used his position as an FBI informant to further his and his sons’ criminal activities.

Scarpa was placed in a cell adjacent to international terrorist Ramzi Yousef, who was being held while awaiting trial for being the mastermind in the bombing of the World Trade Center in 1993. Scarpa would later claim at his racketeering and murder trial that he was recruited by the FBI to spy on Yousef, photographing diagrams Yousef showed to him with a secret, miniature camera. Scarpa would also claim he told the FBI about a terrorist plot he learned of from Yousef against a Prosecutor and Federal Judge. The jury convicted Scarpa on racketeering, loan sharking, gambling, and murder conspiracy charges, but acquitted him on five murder counts. "

http://www.americanmafia.com/Feature_Articles_9.html

scarpa jr testified about some of his dad's crimes, the crooked fbi agent, and that al-qaeda member he was holed up with.

"The son of DeVecchio’s Mafia informant, Greg Scarpa, Jr. became an FBI informant himself when he was incarcerated next to Ramzi Yousef, the mastermind of the ’93 World Trade Center bombing. Greg Scarpa, Jr. had been involved in murders with his father. He claimed DeVecchio was intimately involved.

So why, then, did Greg Scarpa, Jr., currently incarcerated in Colorado, not get called as a witness in the DeVecchio trial? Perhaps because the raw intelligence Scarpa Jr. provided the FBI in 1996 showed that the FBI knew about terrorist “mastermind” Ramzi Yousef planning new attacks on the World Trade Center five years before 9/11/01. "

http://www.sanderhicks.com/DeVecchioWatch.html