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April 8, 2025 22 mins

Between 1994 and 2004, Derek Todd Lee terrorized Baton Rogue, LA. But, unbeknownst to authorities, another monster was walking the streets, not only copying but competing with Lee. It would be deviant fantasies developed as a teenager that drove the violent actions. Join Olivia Cornu and John Conner as they dive deep into the dark to discuss the crimes of Sean Vincent Gillis. Will this case be enough to make you check the locks?

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This episode of Check the Locks is dedicated, with love, to the memory of our friend Mathew Scott Halliday. 

Sources:

Sean Vincent Gillis | Criminal Minds Wiki

Sean Vincent Gillis, ‘The Other Baton Rouge Killer’

STATE v. GILLIS (2008) | FindLaw

Sean Vincent Gillis: The 'Other' Baton Rouge Serial Killer Who Murdered 8+ (1994-2004)

Sean Gillis | Murderpedia, the encyclopedia of murderers



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