Should murderers and other brutal criminals be executed?

Serial killers should be shot in the face. It depends on the case of someone killing someone else. If it's self defence,no they shouldn't. If someone goes around and kills some random person or a loved one, yes. Rapists are the worst. Rapists should all be raped themselves until they eventually die. Some people get life sentences for hardly doing anything. I was watching a video about this man who robbed a couple places when he was 14 I think and he got 3 life sentences 😳😳 WTF. Clearly the judge was a racist fucker.