Gangland - William P. Wood

Hector Molina controls Gangland. From behind prison bars, he rules a ruthless gang of renegades who deal in extortion, drugs, and death. 

U.S. attorney Claude Massingill is determined to expose Gangland. He's got Molina locked up as a protected witness for a trial that’s sure to make headlines-and Molina couldn’t ask for a better hideout than the one the government is giving him. 

Now, Assistant D.A. Mike Swanson needs to penetrate Gangland . . .  and fast. He’s got to break through the federal fence, get to Molina, and convict the notorious prison ganglord of murder . . . before someone ends up dead.