"If it can be imagined, no matter how depraved, it can be done."

Dr Eric Cullen is a Clinical Forensic Psychologist and has spent much of his working life working in prisons throughout the UK, including the therapeutic prison, Grendon. Dr Cullen brings his expertise with dangerous offenders to the fore, and analyses what key areas of their lives cause our serial killers to commit murder.

Get in touch on social media by searching for Crime+Investigation and using #MakingAMonster, and leave your thoughts in the review section of your podcast app.

Making a Monster: The Tapes features interviews recorded by Monster Films for the Crime+Investigation TV series, and was hosted by Cherry Healey, produced by Sam Pearson and Chloe Frost, with editing by Joel Porter.

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