Gareth Williams verdict: unanswered questions The badly decomposed state of his body means tests for certain poisons, such as cyanide and chloroform, can never be carried out. Was it connected to his work? A senior counter terrorism officer admitted he could not rule out that someone from MI6 was involved. What was he searching on the MI6 databases? It emerged he had conducted some unauthorised searches of MI6 databases but the intelligence service did not reveal what they were. Why was there so little DNA evidence in his flat? The family believe people expert in the "dark arts" were involved and that could mean someone with knowledge of how to "clean" a crime scene. Why was the heating on? It was the middle of summer. It raises the prospect it was deliberately turned on to speed up decomposition. Why did the presence of nine computer memory sticks and a hold all at work only emerge this week? It remains uncertain what was on the sticks, whether they belonged to Mr Williams and why they were never disclosed to the investigating team. Did MI6 and counter terror police hamper the investigation? The coroner accused a senior police officer of not being "completely impartial" and suggested he would have seized more work-related items if it had not been MI6. Were his work computers tampered with? They were not handed over to the police for several days after his body was discovered. Why was one of his phones restored to factory settings on the night before he is believed to have died? Police investigations are continuing. Whose DNA is on the bag? The traces of at least two people were found but are so weak they may never be of any use and could be "years" old. Was he a transvestite or just interested in fashion? No one knows why he had £20,000 worth of womens" clothing in his flat, mostly in pristine condition. He had attended two fashion courses. Did MI6 know about his private life? It is unclear if his penchant for womens" clothing, tying himself to his bed and visits to bondage websites were ever picked up by his bosses. Did he film himself naked on his phone or was someone else present? Police found a video of him dancing in front of his phone wearing only leather boots. Did he take drugs? Traces of the date rape drug GHB were found in his body but it remains uncertain whether it was taken or naturally occurring after death, which is common. Why were the keys to the padlock inside the bag? Was it to torment him or a bizarre escapology attempt gone tragically wrong? Why did he have a newspaper article discussing the main regrets of dying people? Was it a plant to suggest suicide?