Prison is actually "fucked up" like that in way. Violent criminals are often locked up for longer than minimum of their sentence (denied parole), not for any re

Prison is actually "fucked up" like that in way. Violent criminals are often locked up for longer than minimum of their sentence (denied parole), not for any revenge, punishment, or deterrence reason but only because they're judged as dangerous. That means the remaining time they spend in prison is because of their predicted future crimes.