"Nobody has ever committed a crime after being executed. You know that, don't you? 100 per cent success rate. [...] Now, I'd be very careful on that one because you’ll get certain groups saying: "You can never prove it." Well, you can prove it if they have videoed it and are on camera – like the Lee Rigby killers. I mean, they should have gone, same week. I don’t want to pay for these people."