All murder is violence. But reliable proxy of over-all violence? Well, # of violent incidents >>>> # of violent incidents that are also murder So there really

All murder is violence. But reliable proxy of over-all violence? Well, # of violent incidents >>>> # of violent incidents that are also murder So there really might not be enough murders to do the statistical inferences you want to do. Also, if there is a qualitative difference between murder and other violence, not merely a quantitative difference in degree, then it might get at the wrong things. Like, sometimes people go into a violent rage, and occasionally those end up killing some one. OTOH, sometimes people, say, rob a store, get scared, and shoot, and that's murder too. And then there are the people who carefully plan a murder to get something they want. Those all seem like they involve different kinds of brain states...