If witness reports are correct about the shot being fired from a scoped rifle I’m going to hazard a guess that the rifle had not been sighted in recently if ever.
It may be that the officer was shooting at the non cooperating autistic white man, but missed entirely because of poorly maintained equipment.
This also explains the alleged “I don’t know” reply when asked why he shot the black man.
Oh, my. That’s even worse if the cop was trying to kill the autistic man.