Intense video, maybe NSFW:
It seems there is always a news story where people stand and take cell video! Here the witnesses knew there was a carjacking happening and immediately took charge until police got there.
A woman and child were in the car when this guy carjacks them. Bystanders jump in to help the women and when the carjacker tries to get away he is brought down and held there till police arrived. Carjacker was taken into custody. Women and children were checked out by EMT, seemed shaken up but no physical injuries.