A recent episode of
Wallander (the BBC remake featuring a constantly
blubbing star and several dopey sidekicks with frizzy perms, not the excellently dour Swedish version) featured a postman as the murderer..it was signposted early on in the episode by plonking a red post van conspicuously in a scene for
Branagh to almost fall over. It's a nice thought, murder. GK Chesterton got there first with his murdering postie carrying his corpse in a mail sack unnoticed: 'the invisible man'. I understand the urge to throttle people.