The L.I. Serial Killer Suspect Probe Expands

Rex Heuermann is being investigated for possible murders in other states

- K.C. BAKER AND CHRISTINE PELISEK

Police are learning more about Long Island Serial Killer suspect Rex Heuermann, the 59-year-old architect who authorities allege is responsible for a terrifying murder spree that gripped Long Island more than a decade ago. On July 13 the twice-married father of two from Massapequa Park, N.Y., was arrested and charged with three counts each of first- and second-degree murder for killing Melissa Barthelemy, 24, Amber Costello, 27, and Megan Waterman, 22. Heuermann is also considered the prime suspect in the murder of a fourth woman, Maureen Brainard-Barnes, 25.