# The reopening of the Patrick Santos cold case

An episode of [The Big Story](https://invisiblenetwork.ai/podcast/1399721065), 10 Aug 2026, 25 min.

Audio: https://rogers.simplecastaudio.com/9cbfc35c-b8ae-496d-8562-10d911e7127c/episodes/5b867814-9122-403a-be85-014959b282dc/audio/128/default.mp3?aid=rss_feed&awCollectionId=9cbfc35c-b8ae-496d-8562-10d911e7127c&awEpisodeId=5b867814-9122-403a-be85-014959b282dc&feed=Okax44bo

It's taken Toronto Police more than 20 years to charge a suspect in the murder of Patrick Santos, a 21 year old Scarborough man that was found zip-tied and duck taped in his home in 2006. Investigative genetic genealogy was able to match the DNA sample taken from the crime scene to that of Pierre O'Connor, a Hamilton man who had no previous criminal record. Host Maria Kestane speaks to Fil Martino, co-host of Tracking a killer, to dig into the details of the 20 year-old cold case. Then she's joined by Steen Hartsen, a faculty member of the British Columbia Institute of Technology to learn more about genetic genealogy - including its ethical risks. Listen to Tracking A Killer here. We love feedback at The Big Story, as well as suggestions for future episodes. You can find us: Through email at hello@thebigstorypodcast.ca Or @thebigstory.bsky.social on Bluesky Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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