Unless the other guy had a weapon in his hand, was physically attacking him, etc., Reeves did not have the justification to kill him.
He needs tobe in jail.
One punch can kill.
It happens pretty often.
http://gunwatch.blogspot.com/2015/01/fl-judge-rules-fists-are-deadly-threat.html
Assume that any “fight” in public is going to barroom brawl/street fight tactics.
Both sides could’ve walked away at any time or backed down.
The popcorn was assault (or provocation).
Throw a bag of popcorn at an officer’s face at a protest and see if there is any charge or response.
I’m not arguing that the shooter was justified, go into the animal kingdom and see what happens if you throw popcorn at a hissing snake or bobcat.