This is not consistent with terrorism. I submit that it is consistent with someone thinking: "I am going to ask them nicely once, and if they don't give me what I want, I am going to teach them a lesson."
He bought the gun a month ago. That’s when a “plan” began.
They are saying that he was taking Ambien, anti depressants ( SSRI ?), anti anxiety meds (Xanax).
All of these have been linked to bizarre, violent behavior.
PTSD has been put to rest as he never saw combat.
Normal people, married with kids, don't just start shooting people in a cold, calculating way because they feel wronged or slighted which is why I'm leaving Sudden Jihadi Syndrome in the mix.
The reason that I mention hassan is that it was a similar crime, carried out in a similar fashion on the same base. To this day the administration still denies that it was terrorism and labels it "workplace violence".