This list tells the stories of real moms and dads who committed crimes in the name of vengeance, and the lengths they went to protect their children. The bond between a parent and child is sacred, so when someone hurts children, the parents may reject the feeling of helplessness. Maybe the police have failed to catch the suspect, or they feel the penalty meted out is too light. In some cases, zealous parents attacked others they believed had harmed their child. Whatever the reason may be, sometimes parents feel compelled to avenge their child and take justice into their own hands.