A gun is a thing, a tool. It is not inherently “good” or “bad.”
Anything in good working condition, like the suicide guns, I’d take a look at. The “accident” guns I might steer away from.
Very few true “accidents”, lots of negligence. See also the recent reports of a former major league baseball player shooting his thumb off while “cleaning” a gun. The first step in cleaning a gun is to ensure it’s unloaded. Neglect that step/rule = “accident”
Ed Gein's cabin was torched the day before it was to be auctioned off. "Just as well" said Gein, when informed.