Deputy Assistant Commissioner Martin Hewitt, of the Metropolitan Police, says there remains "gaps in understanding" regarding the death of MI6 worker Gareth Williams.
But he has concluded, following two years of investigation, that it is "most probable" that the codebreaker was alone at the time of his death.
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You can't say the 130 Brexit Tory MPs who forced Cameron to have this referendum haven't had an impact on political life, writes Chris Ship.
Foreign Secretary Philip Hammond said there will have to be a "trade-off" on UK access to the EU single market and migration controls.
A man arrested on suspicion of murdering Melanie Hall 20 years ago has been released on police bail. She disappeared in Bath in 1996.