You shouldn't take someone's life.
Robert just found out that his daughter was raped by her ex boyfriend.
Robert wants justice for his daughter.
Robert calls the police on his daughters ex boyfriend.
Robert tracks down her ex boyfriend and takes his life.
The police arrest Robert's daughter's ex boyfriend and take him to prison.
Robert is sent to prison for the rest of his life and is not able to be there for his daughter when she needs him the most.