Well, this incident has definitely impacted my breeding operation... None of my others are sick or anything, but the tub that the male belonged to had 11 pinkies in it on Saturday when I took him out, and only 2 when I checked yesterday. They've never cannibalized before, so I can only assume that his absence is stressing them.
Both the girls in the tub are pregnant at the moment, and I'm just going to let them birth out and hopefully raise the litters they're pregnant with and then probably feed them off. They're nearing the end of their "prime" anyways, so it's time for their daughters to take over...