In a significant turn of events, the Suffolk County Court murder case involving the killings of Melissa Barthelemy, Megan Waterman, and Amber Lynn Costello sees a new development. The prime suspect, 59-year-old architect Heuermann, already arraigned this past July, is facing fresh scrutiny.

Heuermann, known for his Fifth Avenue architectural work in Manhattan and resident of Massapequa Park in Nassau County, is closely linked to these harrowing events that have cast a shadow over the community. The proximity of his residence to the grim discovery site of the victims' bodies in a secluded area of Gilgo Beach on Long Island's south shore only deepens the intrigue.

Upcoming court proceedings in Riverhead on Tuesday, Jan. 16, are set to reveal a new grand jury indictment against Heuermann, potentially implicating him in a fourth murder, as per sources cited by ABC News. While details remain sparse, there's growing speculation about whether this charge is related to the disappearance and murder of Maureen Brainard-Barnes.

This case has gripped Long Island, particularly with the revelation that 11 bodies were discovered at Gilgo Beach, of which five have been identified. Spanning over a decade from April 20, 1996, to Dec. 13, 2011, the murders have been a source of unease and mystery in the community.

As LongIsland.com continues to cover this evolving story, stay tuned for the latest updates and in-depth coverage of the upcoming court proceedings. Our commitment is to bring our readers accurate and timely news, especially on matters that hit close to home.