I'm mostly lurker. Not enough time or skills for digging but I'm a thinker.
Shooters/Therapists: Pay attention to the man who flew from Alaska to Minnesota(?) to Ft Lauderdale, removed gun from suitcase and killed several - then just surrendered. He was in Reserves (IIRC) and had been to FBI to say people were pushing him to kill people. They blew him off/ interfered w/ his reserves.
Also, Dallas police - Vet Dishonorable - records "lost" Baton Rogue same. Recent Church in Tx - same. All 3 of those sounded off at the time.
Finally, Therapy isn't all for sick purposes. I had a Psychiatrist who was a wonderful woman. Helped me a lot. Improved everything. Use your gut when choosing someone.