they invaded in June hoping to get it done before the winter. It's just that the Russian weather doesn't fuck around. (also that the dumbfuck nazi leadership didn't consider halting the advance and reinforcing supply lines when the going got tough)
He did not invent the modern computer but contributed significantly to the modern theory of computation. There is no single person who invented the computer, it was a collective effort over decades, if not centuries, ref. Leibniz, Lovelace, Bool, von Neumann, Weizenbaum, and many more.
Turing died on 7 June 1954, 16 days before his 42nd birthday, from cyanide poisoning. An inquest determined his death as a suicide, but it has been noted that the known evidence is also consistent with accidental poisoning.