Few adult males posting here would be alive if they had been executed for a stupid prank they pulled as a teenager.
The law places more responsibility upon an adult than upon a teenager. There is a good reason for that. Adults are supposed to have more sense.
The shooter overreacted and caused the death of a minor. Killing someone is not to be a decision taken lightly.
Based upon many of the arguments here, I conclude life has been greatly devalued in our country. Shoot first, ask questions later. Live with a clear conscience because your peace was violated and somebody just had to die for it.
Hell, it's just somebody's kid. He deserved to be blown away. Throw his prankster body in a box and shovel dirt on him, wash your hands and go on about your daily life. Reload for the next kid.