Rex Heuermann arrested in Long Island's Gilgo Beach killings: Rex Heuermann is charged with killing Melissa Barthelemy, Megan Waterman, and Amber Costello. Police say he is considered a suspect in another homicide. https://www.wgrz.com/article/news/crime/wny-native-one-of-the-victims-of-giglo-beach-serial-killer/71-3c05b0b6-68c0-4acb-bf99-cb6cb49e3b4e