Nicola Tallant is an Irish investigative crime journalist. She has been voted Irish crime journalist of the year three times and is author of best selling book and podcast "The Witness".

We chatted about:

• Joey "The Lips" O'Callaghan who became Ireland's youngest person to enter the witness protection programme
• The inner workings of the Kinahan cartel
• The implications of recreational drug use
• Tracking down John "The Coach" Traynor in the UK
• The sado masochistic crimes of Graham Dwyer
• The definition of evil....

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