Can you sue someone that was supossed to be watching your child and they recieved 3rd degree burns?

my son was at a friends house and their 15 year old tried to lite a battery powered rocket with mixed oil and gas and the 8 year old brother flung gasoline on the flame and the flame hit my son who was just in the wrong place a the wrong time and the dad was not watching the kids and did nothing but tell my son to go to his dad across a field and major highway and did not come with my son to tell his dad what happened!!!