A road-rage shooting in Miami -- and the guy responsible for the whole thing -- an 83-year-old man.

Cops arresting Mario Perez-Tano after they say he started shooting at a driver who supposedly cut him off on the road.

Both drivers didn't really have a chance to get away as the bridge over the Miami River was up at the time.

Both men staying on scene and the victim was treated for minor injuries.

Tano facing attempted 1st degree murder charges.