You're a superhero

[Anomalocaris]

It’s not that hard.   You just redefine whatever you were doing when you kill to be self defense.   Even the dumbest American cops can manage it.

"I burned down that old peoples' home in self defence!"

Yeah, that works.

The Octogenarian ninja turtles had deadly razor sharp nunchuck hidden in their walkers.  When they pretend to trip as they rush out the exit, they were lunging for you.

---

I like the way Batman solved this: he doesn't kill people, but his car does.

Boru

People don’t kill people, cars kill people.