Registering to vote is odd, isn’t it? This man sounds unwell and often incoherent, yet he got it together enough to plan some kind of attack and made time to register to vote. Not being a psychiatrist it’s hard to know how mental mechanisms work when someone is planning horrible deeds. It seems this “weirdness” isn’t new; Carolina neighbors mentioned it too.
He could have been automatically registered to vote when he got his driver’s license, if CO. does what many other states do.
I am an RN who worked in a forensic mental hospital so I have some perspective. He appears mentally ill and the stories of his rambling incoherent speech and lack of a social footprint add weight to this possibility. Unknown if he was being treated, and prescribed meds and if he was taking them. Actively psychotic schizophrenics are usually disorganized and not good at planning, but we don’t know his history so it is hard to say.