Jon Gravelli is the leader of the Gambetti Family, a well connected and powerful Mafia crime syndicate. Since 2005, Gravelli has been a medical patient at the Schottler Medical Center in Liberty City for a disease which is never revealed ingame. After being sent to the medical center, he was charged with racketeering in 2006, though a trial had yet to take place when he first meets Niko Bellic. Gravelli was introduced to Niko by United Liberty Paper, who Gravelli refers to as a "mutual friend".
After Niko has made his choice as to either take revenge or go along with the deal, Gravelli passes away peacefully in his sleep.
- Jon Gravelli was born in 1923.
- He took charge of the Gambetti Family in 1978 after it's original leader Sonny Cangelosi passed away.
- He has a son named Jon Gravelli, Jr., though he has been disowned by his father for having an addiction to cocaine.
Grand Theft Auto IV: Jon Gravelli Missions
- Dining Out
- Liquidize the Assets