Watch 48 Hours Season 36 Episode 69: Sneak peek: "The Dexter Killer"

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Sneak peek: "The Dexter Killer"

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Inside the mind of murderer Mark Twitchell —letters from the man police say wanted to be like fictional serial killer Dexter. "48 Hours" contributor Troy Roberts reports Saturday, August 17 at 9/8c on CBS and streaming on Paramount+.

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Sneak peek: "The Dexter Killer"

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NEW EPISODE AVAILABLE SATURDAYS

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- Season 38
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- Season 36
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