Yeah I think (as far as you can try to figure out the motives of a deranged crazy person) its just cowardness.

• Suicide is the usual troon exit.
• Suicide by cop after attacking targets that can't attack back, is just a more heinous act of cowardness

At least go out axing a NAMBLA meeting or something, or a pharma C-suite, the ones that paid to get you subbed for life on the psycho meds and hormones.