I think the motivation is important. In this case, there was the desire to stop the perpetrator from hurting others, so taking some time to pursue the case was

I think the motivation is important. In this case, there was the desire to stop the perpetrator from hurting others, so taking some time to pursue the case was driven (in part) by compassion, and not merely revenge. Ignoring injuries is a great practice, if the injury is not likely to be inflicted, again and again, on others.