That could be the reason or if he were a brainwashed patsy then he might have been instructed to register as a republican too. All I know is that people that would shoot President Trump would not register as a republican without a devious reason. That is just common sense.
He was registered as a Republican in the spring so he could vote for Haley.
Unemmployed....no pay-check. Would imagine dad was giving him an allowance (to afford the AR-15). What I question....when he bought the AR-15...did he get any training time in? (I don’t buy into him being capable of using the weapon)
How did he get to the event? Did he drive and does he own a car?