The Gilgo Beach serial killer, Rex Heuermann, revealed that his first murder in 1993 was a grisly murder that he claimed wasn't planned but "just happened". Over the next 17 years, he developed a four-day killing system to torture and strangle seven other sex workers in his basement "kill room" while his family was away. The final chapter of "The Confession," titled “The Confessions” reveals new details of the serial killer's decades-long reign of terror through jailhouse confessions to his family and a psychotherapist before his guilty plea in a Suffolk County courtroom. The revelations come after HeUermann admitted to killing eight sex workers by strangulation and dumping them along Long Island stretches of Long Island between 1993 and 2010. He was arrested in April and charged with three cold cases of three murders, including three of Sandra Costilla, Sandra Lee, the first victim in 1993, and pleaded guilty to butchering Amber Lynn Costello.