. >> the witness testified he had been drinking with the suspects at the alice griffith projects and says when a car drove up, william jones ordered bailly and his friends to come out and hand over possessions. he said the dude was getting jumped. prosecutor what happened after that? witness, billy shot him three times, once in the ribs once in the leg, once in the head. >> there was and there was tight security. adviseors walked through a metal detector. >> more witnesses have received threats and we believe these are credible threats. >> task force investigators say witnesses testify at great risk. >> it's very difficult, very rare, yes. now they're labeled as a snitch putting themselves in danger. >> but prosecutor says witness cooperation can seal convictions. defense lawyers disagree. >> they're very afraid of going to prison for life. they're going say whatever the d.a.wants them to say. >> and police sources tell us that that witness is in a secret relocation program which means he's out of the city, out of the county, perhaps out of the state. he's been granted immunity for t