Met Police version of how MI6 spy died... quite believable

News report: http://www.bbc.co.uk/news/uk-24927078
The suspect I would expect would be MI6 but they were the ones who carried out the investigation. Met Police then concurred with MI6's conclusion despite "evidential contradictions and gaps in our understanding." The most important paragraph in the BBC report: "None of his DNA was found on the lock attached to the bag and his palm prints were not found on the rim of the bath."