I think that (MKULTRA stuff) MIGHT HAVE happened with the ‘right winger kid - Roof ‘ who killed innocent blacks in a South Carolina Church too. He confused the Irish Republican Army with the NRA - National Rifle Association. His position after the murders was surprise that he didn’t save a bullet for himself - like he knew he was suppose to shoot himself. Also, he and that other racist shooter - the old guy - both had contact with the Southern Law Poverty Center... a group that dearly wants reality to mimic the lying stories they put out. People who have never dealt with brain washing think it’s a hoax - it’s not...
I do not know specific details about these shootings, but I will agree with you that there are a lot of questions. Cui Bono?