Even if we are to believe the non binary bs, it's symptom of society not accepting those that are different, akin to some serial killers and mass murderers who were gay but hated it and endee up killing other homosexuals.
And that's even assuming that the non binary thing is accepted.
Moreover calling LGBT groomers, accusing transgender people of rape and paedophilia is stochastic terrorism and recycled homophobia. Which, even if shooter is non binary, SHOWS WHY WHETHER OR NOT THEY FUCKING ARE, IT POINTS OUT THIS WAS LIKELY TO HAPPEN. Not to mention that there have been other attacks on LGBT, shooters that were right wing, and motivated by racist or Christian Nationalist motives but TERFs don't condemn them.