Did Alan Turing Really Commit Suicide?

The BBC reports on a Turing scholar's recent claims that by today's standard of evidence, there's reason to doubt the commonly-held belief that the famed computing pioneer committed suicide in response to government persecution over his homosexuality. To be clear, he does not claim to have disproved the suicide theory -- only that the cyanide poisoning that killed Turing could well have been an accident caused by his careless at-home experimentation with dangerous chemicals.