The guy employed parolees so they wouldn't turn to crime and he himself didn't have a criminal record. Sad he took his life.
It now seems more likely that he turned to parolees because he knew he could control them better and they probably already knew the business.
"One investigator said Mondella’s employees were likely unaware of the doings in that stealth basement. These employees include parolees that Mondella was known to hire from the nearby housing project, giving them a chance to not let a crime define their lives."