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October 16, 2025 16 mins

In Massachusetts, Kylee Monteiro was young, pregnant, and hopeful — until a chilling text to her sister read, “If I die, it was Greg.” Days later, she was gone. When police began to dig into her disappearance, the truth they uncovered was darker than anyone imagined. Join Olivia Cornu and John Conner as they dive deep into the dark to discuss a breaking story. 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:

Body of missing pregnant 18-year-old found, ex-boyfriend confessed to murder: Officials - ABC News

Vigil held in Rehoboth for Kylee Monteiro, pregnant teen allegedly murdered by boyfriend - CBS Boston

Kylee Monteiro Rehoboth candlelight vigil – NBC Boston



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