Mass shooting in the middle school Vladislav Ribnikar in Belgrade

[FlatAssembler]

Look at Kleck's sample (not the sample size, but who he questioned): he drastically over-represented not just men, but the oldest male in each household with a gun.

You can argue that leads to a 30% overestimate, but you can not claim that leads to a 90% overestimate (which would be necessary for guns to kill more people than they save).