So true!
I just read on Breitbart that the shooter was “weirdly unemotional” afterward. There’s your sign. The kid was probably on mind-altering drugs from a fairly young age. These drugs keep the mind from feeling emotion - my SIL was on them. She said that she felt nothing, which helped her deal with her crazy husband, but it also kept her from crying at sad events and enjoying laughter. She was a zombie.
I think I read his mother works in the healthcare industry???