While it may be tempting to go the vigilante route, I think that this man did the furthest thing from acting like a man. Instead of trying to follow the law, he took it into his own hands. Now, when his wife and daughter need him most, they will simply be the center of a media circus.
Although as a mother, I would want to slowly and methodically kill anyone who I suspected of touching one of my children, I would hope to be strong enough to be there for them when I felt they needed me most. Sitting in a jail cell for some undetermined time certainly wouldn't be of any help to my babies. It would only give me some temporary sense of relief from my anger.