Mark Williams-Thomas is a former police detective and a multi-award-winning investigative reporter. He is well known for working on investigations, including the "Yorkshire Ripper" Peter Sutcliffe. Williams-Thomas speaks with Insider about special investigative techniques and common issues in the process.

Williams-Thomas is the author of “Hunting Killers” and has starred in television programs and crime series looking at cold case murders and violent crimes, such as “The Investigator: A British Crime Story” on Netflix. He’s reported on crime stories including Jimmy Savile, Oscar Pistorius, and the disappearance of Madeleine McCann.

Find out more: https://www.williams-thomas.co.uk

“Hunting Killers”: https://www.williams-thomas.co.uk/hun...

Chapter 1: The Killer Mindset 00:40 - 03:11
Chapter 2: Gathering Evidence 03:12 - 06:02
Chapter 3: Tracking Suspects 06:03 - 08:30
Chapter 4: The Apprehension 08:31 - 09:47
Chapter 5: The Interview 09:48 - 12:02
Chapter 6: The Wrong Man 12:03 - 13:22
Chapter 7: The Convictions 13:23 - 15:41
Chapter 8: The Aftermath 15:42 - 17:39

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How Serial-Killer Investigations Actually Work | How Crime Works | Insider