[Svartalfiar]

If this guy was thrown out of the service for “mental illness”, how did he pass the NICS check when buying an AR15. Did he acquire his firearms legally?* Did the US military fail to report his discharge for mental problems to the BATF?

Actually kicked out for a diagnosed mental illness? Or simply released from basic for "failure to adapt"?

[SJackson]

I believe the NICS standard would cover a dishonorable discharge, we don't know the nature of his separation, or adjudicated as a mental defective or committed to a mental institution, committed meaning involuntary. Possible neither applies.