And who gets to decide who gets killed ? Who is infallible, incorruptible and flawless enough to decide who gets executed ?

And if you cannot name them, then tell me: How many innocent people are you willing to murder, per 100 executions. If you cannot name a flawless judge, then innocents will be executed. That is a fact. So tell me: How many innocents are you willing to murder, for heinous criminals to be executed instead of getting life without parole ?