Car accident

I just got in a car accident with a guy who has no license no insurance. The title to the car is in his sister‘s name. He speaks no English. He gave me all the cash he had on him, which would be just enough to cover my deductible. Should I still report him to my insurance or just say it was a hidden run? I understand people are going through hard times now even though this fuck up my day and I don’t wanna be the guy altered or ruined this guy that can be fixed. Any response will be greatly appreciated. Thank you for your time.