could set all-time records. 12 and a half years ago, the bodies of four people were found over several days buried on long island. all four women were murdered, wrapped in burlap. they were eventually identified as melissa bar tholmy, megan, marie and amber lynne costello, and they were not the only ones. investigators would uncover seven more sets of human remains across two long island counties, bringing the total to 11. but there were few clues. the case went cold. no arrests were made until now. tonight the remarkable story of how authorities came first to suspect and build a six-count murder case against a 59-year-old married architect with two children of his own in a home in a quiet long island neighborhood. miguel? reporter: anderson, i want to show you what s been happening outside this home. this case, this unsolved murders, have gripped long island and so many people for so long. police have been out here all day going through his home, bringing out tons of e
long. police have been out here all day going through his home, bringing out tons of evidence. and even though they ve only brought charges regarding three of those deaths near the beach, it has been received with enormous relief. i m standing here with my law enforcement partners and the gill guo task force to announce the indictment of defendant rex andrew hereman. sex workers found tied up, their bodies wrapped in camouflage burlap, dumped on new york s long island. when i took office in january 22, i made gillgo a priority. reporter: the beach murders traumatized and captivated long island just east of new york city for more than a decade. now the suspect, as unthinkable as the thursdays themselves. this is a shock. i ve seen some things, but this is wicked.