Flutterby™! :

Homicide trends in the US. Weapon wise, handguns peaked in the early '90s, knives have been on the decline since '80 or so, there was a sharp drop in "other guns": in the early '80s, and "other methods" and "blunt objects" remained fairly constant. And most of the variation in gun usage comes from ages 18-24. Interestingly, while the number of men being killed by intimates has dropped substantially, the number of women killed by intimates isn't declining nearly as quickly.