I don't believe where some of these anti-capital punishment brigade come from.
Are they all civil servants/social workers type of persons, sitting in front of their left wing council's computers, with little else to do during their "working" hours?
Go out onto the street, on public transport, in the supermarket, and speak to ordinary folk, the majority are fed up with all of today's violent and vicious crimes and wish for capital punishment to return, for vicious murder, (at least that is my experience).
To all those that say it would not prevent some of these murders I say "of course not, but it would reduce the numbers, and they wouldn't kill anyone else".
Take gun crime, in the past even the hardest of criminals would shy away from taking guns on a job, because of the fear if things went wrong it would be the long drop for them.
Before the abolishment of hanging, those that committed murder and consequently paid the ultimate price, went down in the annuals of criminal history.
How many murders are remembered today? They are happening on an almost daily basis.