So long as you have the reasonable assumption that most people who shoot other people have short planning horizons, this makes sense. You provide an incentive t

So long as you have the reasonable assumption that most people who shoot other people have short planning horizons, this makes sense. You provide an incentive that actually affects the people in question, and they respond. The vast majority of people, in every community, are already influenced by incentives that are much heavier than this one; it's not gonna cause a spate of murders, because it they currently are responding to a time horizon that's driving their behaviors.