Chronic Suing

I was the driver of a vehicle struck by a drunk driver who was travelling wrong direction on a highway.  My passenger was injured and has never returned to work although he is fully capable.  I am being sued now by my passenger. I come to find out this individual sued another co-worker for running over his foot and used pictures from my accident as evidence.  He also had a mysterious house fire while all of his antiques were out getting refinished.  He now has a house on the lake about 4 times as big as his old one.  Is there any way to put an end to this chronic suing and raping of the insurance system?