That does not rise to the level where deadly force is justified. Under the law you have to be in imminent danger of great bodily harm or death. Verbal threats and popcorn don't constitute that.
Betn this gets thrown out.
Bet it doesn't.
The report says the wife was shot through the hand that she had on her husband’s chest. The old man was seated behind the texter, which means the texter had turned around toward the old man and his wife was trying to restrain him, the texter, with her hand.
Do you have any details of the confrontation beside what was in the report at link?