Cops are on the hunt for the person who opened fire at a youth football game in Jacksonville -- killing a 27-year-old man and wounding his 7-year-old son.
Video shows the moment the shooting took place Sunday at the football fields next to Arlington Heights Elementary School.
You can see dozens of children playing football while their families watch -- and then all of the sudden, 4 gunshots ring out.
Cops describe the shooter as man wearing a hoodie and a mask -- who who jumped out of a grey SUV and fired the shots, before jumping back in the vehicle and driving away.