Gilgo Beach Murders: DA reveals new evidence, DNA

Suspected Gilgo Beach serial killer Rex Heuermann's wife appeared in court Wednesday. Heuermann is charged with the murders of Melissa Barthelemy, Amber Costello, and Megan Waterman. He's now the prime suspect in the killing of Maureen Brainard-Barnes. Heuermann pleaded not guilty to the charges.

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