A person having a record does not excuse killing them. Neither does being poor, sick, or homeless.

If that person is threatening you and/or acting unstable and like he's going to snap any moment...yeah, it does. Don't want these poor innocent violent maniacs to die like dogs in the street as a consequence of acting like violent maniacs? Keep 'em in the cells where they belong.

All this coming from the cunt claiming how scared and traumatized she was when a bunch of people were let into a building she wasn't even inside at the time.