I'm not running in circles with you. I've already explained why these statistics aren't useful when wuf posted them.
YesWhere are you going with this? An episode of mental illness in one's past automatically precludes them from buying a gun ever? That's not a world I want to live in. Do you know how many soldiers come back from war with PTSD? Are we really saying they can't have a gun??
Here's a video of a cop who was later diagnosed with having had PTSD from a previous incident going about his duty:
https://www.youtube.com/watch?v=-XFYTtgZAlE