Any person in aposition of power who becomes known for spruiking hatred must be considered at least partly responsible for the actions of his disciples. Hitler wasn't entirely responsible for the Holocaust, either.
I'm not shocked because of the location that was chosen. He was from Dallas but went to El Paso to carry out a mass shooting. I don't think theyv'e concluded for sure that that manifesto was posted by him, but it seems likely.
What I read said his posted document read that he was against the invasion at the border. That is not being against immigration. He is 21 years old and has no life left. He took 20 others. My heart is heavy.