London - (Spy-Who-Gagged-Me-Mess): "A BBC Crimebotch reconstruction might just crack it open, of course," the Murder Squad's DCI Baz Rottweiler said today.
"But it could also blow away a foreign asset's cover and end up aborting a huge anti-terror sting op. Like on Papa Ratzi's impending visit."
Police are keen to stress however that no foreign/unaccountable bodily fluids were found on/in Gareth William's naked cadaver.
Toxicity tests also revealed nothing and an internal probe for nerve gas contamination also drew a puzzling blank.
Releasing the latest forensics update this afternoon Met detectives appealed for help from the public in a carefully crafted plausible deniability statement omitting any mention of 'rainbow wigs' and a make-up bag.
East London ex-MI6 man Daniel Houghton, 25, was convicted of a £2 million secrets selling scam in the Old Bailey last Friday.