wow wolf,
yyou didn’t tear him to shreds?
but seriously i don’t kknow this person, if he’s a habitual talker or not, however if he is i’m very impressed he kept shut during shachris hallel and krias hatorah and couldn’t hold himself back any longer!
also, you can’t fault people in how they were raised, some people were raised nott respecting other people
for example we were at a kiddush yesterday and one kid pushed my youngest son and didn’t even say sorry, later on by the same kiddush i saw a lady walk by and drop a tissue that she was holding on the floor (there was a garbage 20 feet away) parents didn’t teach the kids because they weren’t taught themselves that it was important (they were taught other things) so this person probably saw his father talking during shul and thought it’s ok