That’s the only possible defense that could be raised. It was called by more than a few people on threads here when it happened. I wasn’t aware that Glocks felt so much like Tasers.
Many tasers have pistol grips and actually simulate the feel of a pistol.
Actually, the first defense I thought of was to claim that he meant to call for backup, and mistook the trigger on his gun for the “talk” button on his walkie-talkie. This is WAY better.
The only possible defense that doesn’t implicate the cop deliberately killing the guy.
He probably did pull the wrong weapon. Maybe they shouldn’t have such a number of things on their belt if they have a hard time keeping track of them. Besides they’re trained and they still make a mistake like this.