The Unanswered Murder of Mark Corcoran Artwork

Sinister South

Join Rachel and Hannah on the Sinister South Podcast as they explore the shadowy corners of South London. Each episode digs into the gritty true crime stories that have left their mark on the local streets of South London. They’ll introduce you to the victims and dissect the mysteries while giving you a taste of the places these dramas unfolded. It’s not all doom and gloom; Rach and Han also have plenty of nonsense to chat about! So whether you're a true crime buff or just curious about the darker tales from their neck of the woods, pull up a chair, tune in and join the mischief!

Want to get in touch with us, or request an episode? You can email us here: sinistersouthpodcast@gmail.com

All Episodes

Sinister South

The Unanswered Murder of Mark Corcoran

February 11, 2026 • Rachel & Hannah • Season 2 • Episode 22

0:00 | 1:18:24

This week, we’re back together after a short break and doing what we do best. Catching up, oversharing, laughing at ourselves, and gently easing into the darkness.

Then we turn to Croydon.

In 2008, 26 year old builder Mark Corcoran was found stabbed in the heart. Despite a violent Valentines Day attack, potential witnesses, and years of investigation, no one has ever been charged. His case remains unsolved.

We talk through who Mark was, what is known about the night he was killed, and the lines of enquiry police explored at the time. We look at where the investigation stalled, what questions still remain, and how cases like Mark’s slowly fade from public view despite never being resolved.

This is a story about a life cut short, a family left without answers, and a murder that still sits quietly in South London history, unresolved.

As always, we approach this with care and respect. Mark was a real person, not just a headline.

Listener discretion advised. Anyone with information regarding Mark's death is asked to call the police on 101. To remain anonymous call Crimestoppers on 0800 555 111.

Support the show

Thanks for tuning in! If you loved diving into the dark corners of South London with us, don't forget to hit that subscribe button to never miss an episode of "Sinister South."

Also, follow us on Instagram @SinisterSouthPodcast for sneak peeks, behind-the-scenes content, and more cheeky banter, or www.sinistersouthpod.co.uk. Remember, every crime tells a story... and South is the best side of the river...

Produced and hosted by Hannah Williams & Rachel Baines
Mixed & edited by Purple Waves Sound (A.K.A Will)