Hero Republican turned MI5 spy - the incredible story of Denis Donaldson and his murder

Hero Republican turned MI5 spy - the incredible story of Denis Donaldson and his murder at a cottage in Glenties, Donegal 20 years ago is one of the most intriguing of our times and will now form part of a podcast special by crimeworld.com.

As Antoin Duffy is brought before the Special Criminal Court in recent weeks accused of the murder, we will delve into the background of Donaldson and the amazing story of his fall from grace.

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