Mental illness is always a license for them to kill, it happens ridiculously often even by statistical count.
Something about unexpected responses and unpredictable reactions to shouting and gun waving that give the pigs an excuse to shoot.
Remember that deaf guy that was killed because of his whittling knife? I don't think the cop suffered any consequences except a paid vacation and an innocent and confused life was lost and the world turns on.
Just crossing the street and clueless the cop was even calling out and bam bam bam shot from behind and he died bleeding out in confusion and fear.
And 1/3 of the country applauded the cop for his community centered focus on reducing the number of undesirables.