Criminal Mastermind: Who Was ‘The Ulsterman’?

When a group of thieves hijacked a train and escaped with millions of pounds, they set a new record for the largest cash robbery in British history. But who tipped them off? For decades, sleuths have debated the identity of ‘The Ulsterman’ — the shadowy insider who instigated the Great Train Robbery of 1963.  Learn more about your ad choices. Visit podcastchoices.com/adchoices