From the shooter's "manifesto":
Are you a Fed/shill/mossad agent/falseflag/patsy/infiltrator/antifa/glow in the dark etc?
''No, but the next person to attack could be, so a healthy scepticism is a
good thing. Just do not allow your scepticism to turn to paranoia and keep you from
supporting those that want the best for you.''
Some interesting stuff in there.