In a shocking development, Rex Heuermann, an architect by trade and the prime suspect in the notorious Gilgo Beach killings, allegedly maintained a detailed "planning document" outlining the meticulous steps to select, kill, and dispose of his victims. According to prosecutors, the Word document was recovered from a hard drive in the basement of Heuermann's New York home, where he lived with his family.

The disturbing document, reportedly created in 2000 and modified over several years, was revealed in a bail application released by prosecutors when they brought charges against Heuermann for two additional killings. Capitalizing the headings, the file outlined procedures for "packaging" bodies for transportation, ways to avoid detection, and methods to remove trace DNA evidence.

Experts noted that Heuermann's background as an architect is consistent with the level of detail displayed in the murders. "His being an architect is totally consistent with the hyper attention to detail that is manifested in his murders," said criminologist Scott Bonn. Heuermann now faces charges in the deaths of six women spanning three decades and multiple communities.

During his recent court appearance, where he pleaded not guilty to the latest charges, prosecutors unveiled the contents of the chilling manual that they claim Heuermann utilized to meticulously plan his kills. Suffolk County District Attorney Raymond Tierney, disturbed by its contents, stated, "I've never seen a written document such as this."

The manual, divided into sections such as "Supplies" and "Problems," highlighted the significance of DNA evidence, listing it as the top item under the latter section. This DNA evidence, along with the "blueprint" document, will form the basis of the case against Heuermann at his upcoming trial.

Forensic testing conducted on hair samples found near the remains of two victims, Jessica Taylor and Sandra Costilla, determined that Heuermann could not be excluded as the source, with 99.96% of the North American population ruled out. Furthermore, two forensic laboratories concluded that hairs recovered from five of the six victims were linked to Heuermann, his immediate family, or individuals residing with him.

The bail application, released on Thursday, asserted that Heuermann is responsible for the murders of Jessica Taylor, Sandra Costilla, Melissa Barthelemy, Megan Waterman, Amber Costello, and Maureen Brainard-Barnes. This assertion was based on evidence, including Heuermann's explicit documentation of the murders and attempts to delete the existence of the "blueprint" document.

Heuermann, a 60-year-old architect, appeared surprised by the additional charges, according to his attorney Michael Brown. He was remanded without bail and is scheduled to appear in court on July 30. Brown, acknowledging the complexity of defending against such heinous crimes, stated, "One murder is obviously horrific, and it's a difficult thing to defend. And now we're at six."

The discovery of the "blueprint" document was a significant breakthrough in the case. It was detected after authorities analyzed over 350 electronic devices seized from Heuermann's residence. Despite attempts to erase it, forensic tools successfully recovered the incriminating document.

As the investigation continues, experts believe that the meticulous planning demonstrated in the "blueprint" document reflects Heuermann's need for grandiosity and recognition. This egotistical documentation of his crimes, combined with the compelling DNA evidence, is expected to make it challenging for the defense to mount a convincing case.

The trial, which will shed further light on the horrific Gilgo Beach killings, holds the potential to deliver justice to the victims and their families. The revelations contained in the "blueprint" document will undoubtedly play a crucial role in determining Heuermann's guilt or innocence.