(NewsNation) — Long Island architect Rex Heuermann has been charged with the deaths of four women known as the Gilgo Four, whose bodies were among several found on Gilgo Beach.
Heuermann’s arrest came decades after the women disappeared and their bodies were found. Investigators used familial DNA to help lead them to Heuermann. Searches of his home revealed a number of items taken as potential evidence.
Heuermann is being held in a Suffolk County, New York, jail pending his trial. Here is a timeline of key moments in the case.
Maureen Brainard-Barnes disappears
July 9, 2007: Maureen Brianard-Barnes is last seen in a hotel in Manhattan. The 25-year-old had traveled there from Norwich, Connecticut, to see a client she had met on Craigslist. She was reported missing several days later.
The mother of two was a sex worker who advertised on Craigslist and Backpages and usually went with a female friend to call for safety. The weekend she disappeared, the friend had left early and returned home ahead of Brainard-Barnes.
FILE PHOTO: Maureen Brainard-Barnes (top L), Melissa Barthelemy (top R), Megan Waterman (bottom L) and Amber Lynn Costello (bottom R) are seen in a combination of handouts released to Reuters by Suffolk County Police Department April 6, 2011. Four bodies found dumped on a remote Long Island beach were officially identified as prostitutes who were likely slain by a serial killer, police said. The women were killed at another location and their bodies were transported to Gilgo Beach, about 64 km (40 miles) east of New York City, Suffolk county, New York police said. The bodies were discovered in early December. “All of the women were escorts, who were self-employed and used Craig’s List and other sites to arrange meetings with clients,” said a police spokesperson, reading from a statement issued by Police Commissioner Richard Dormer. REUTERS/Suffolk County Police Department/Handout (UNITED STATES – Tags: CRIME LAW SOCIETY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS/File Photo 
This undated image provided by the Suffolk County Police Department shows Amber Costello. Authorities on Long Island are vowing to continue investigating a string of killings known as the Gilgo Beach murders after charging an architect in the deaths of three of the 11 victims. Rex Heuermann, 59, is accused of killing Melissa Barthelemy, Megan Waterman and Amber Costello over a decade ago. He is also considered the prime suspect in the death of another woman, Maureen Brainard-Barnes. (Suffolk County Police Department via AP) 
This undated image provided by the Suffolk County Police Department shows Melissa Barthelemy. Authorities on Long Island are vowing to continue investigating a string of killings known as the Gilgo Beach murders after charging an architect in the deaths of three of the 11 victims. Rex Heuermann, 59, is accused of killing Melissa Barthelemy, Megan Waterman and Amber Costello over a decade ago. He is also considered the prime suspect in the death of another woman, Maureen Brainard-Barnes. (Suffolk County Police Department via AP) 
New information was released Thursday on the identities of four victims believed to have been killed by the Gilgo Beach serial killer. 
FILE – Crime scene investigators use metal detectors to search a marsh for the remains of Shannan Gilbert, Dec. 12, 2011 in Oak Beach, New York. A Long Island architect has been charged, Friday, July 14, 2023, with murder in the deaths of three of the 11 victims in a long-unsolved string of killings known as the Gilgo Beach murders. (James Carbone/Newsday via AP, Pool, File) 
This booking image provided by Suffolk County Sheriff’s Office shows Rex Heuermann, a Long Island architect who was charged on July 14, 2023, with murder in the deaths of three of the 11 victims in a long-unsolved string of killings known as the Gilgo Beach murders. (Suffolk County Sheriff’s Office via AP) 
WANTAGH, NY – APRIL 15: An aerial view of police cars near where a body was discovered in the area near Gilgo Beach and Ocean Parkway on Long Island on April 15, 2011 in Wantagh, New York. Police have been conducting a prolonged search of the area after finding ten sets of human remains. Of the ten only four sets of remains have been identified as missing female prostitutes in their 20s who had been working in the online escort business. Police, working with the Federal Bureau of Investigation (FBI), suspect that a single serial killer may be in the New York area focusing on sex workers. (Photo by Spencer Platt/Getty Images) 
Police officers stand guard near the house where a suspect has been taken into custody on New York’s Long Island in connection with a long-unsolved string of killings, known as the Gilgo Beach murders, Friday, July 14, 2023, in Massapequa Park, N.Y. (AP Photo/Eduardo Munoz Alvarez) 
Riverhead, N.Y.: Accused Gilgo Beach killer Rex Heuermann appears before Judge Timothy P. Mazzei in Suffolk County Court in Riverhead, New York on August 1, 2023. (Photo by James Carbone/Newsday RM via Getty Images) 
The family of accused Gilgo Beach serial killer may seek damages after a search of their home. (Asa Ellerup via Robert Macedonio) 
Police investigators in the backyard of Gilgo Beach murders suspect Rex Heuermann in Massapequa Park. (Credit: WPIX) 
Authorities search the home of suspect Rex Heuermann, Tuesday, July 18, 2023, in Massapequa Park, N.Y. Detectives investigating the long-unsolved slayings known as the Gilgo Beach killings have continued their searches, recently including a storage facility in the Long Island community of Amityville over the weekend. (AP Photo/John Minchillo) 
Rex Heuermann appears with his lawyer Michael J. Brown, left, at Suffolk County Court in Riverhead, N.Y., on Wednesday, Sept. 27, 2023. Heuermann was charged last month in the deaths of three women and is the prime suspect in a fourth. (James Carbone /Newsday via AP)
Melissa Barthelemy disappears
July 12, 2009: Melissa Barthelemy is last seen in the Bronx, outside her apartment. Barthelemy, 24, was headed for a $1,000 date the next night with a client in Long Island, New York. After she disappeared, her sister received calls from a man who used Barthelemy’s phone and said he had killed her.
Barthelemy had moved to New York with dreams of becoming a hairdresser. She eventually began working as an exotic dancer and eventually as an escort, something her family speculated she did to make ends meet.
Shannan Gilbert disappears
May 1, 2010: While Heuermann is not charged with Gilbert’s death, it was her disappearance that would lead to the discovery of all the remains. Gilbert, 23, called 911 saying people were trying to kill her after leaving a client’s house. She was also seen banging on doors yelling for help.
Megan Waterman disappears
June 6, 2010: Megan Waterman, 22, was staying at a hotel in Hauppauge, New York, and was last seen walking toward a nearby convenience store.
Police described Waterman as a victim of sex trafficking and her family said the single mother had been taken to New York by her boyfriend.
Amber Lynn Costello disappears
Sept. 2, 2010: Amberlyn Costello, 27, was last seen by her roommate as she left for a date with a client who offered her $1,500 for a date. The client had called three or four times, asking for a date with her.
Costello had previously struggled with drug use before going to rehab. Her male housemate often went with her on outcalls for safety.
Melissa Barthelemy’s remains found
Dec. 11, 2010: Investigators searching for Shannan Gilbert find the first set of remains along Giglo Beach. The skeletal remains are eventually identified as Melissa Barthelemy.
Maureen Brainard-Barnes, Amber Lynn Costello, Megan Waterman’s remains found
Dec. 13, 2010: In the continuing search for Gilbert, three sets of remains are found not far from Waterman. They are eventually identified as Maureen Brainard-Barnes, Amber Lynn Costello and Megan Waterman. Police would continue to search the beach into 2011, finding several additional sets of remains, which have not been officially linked to Heuermann.
Gilgo Four identified
Jan. 24, 2011: Investigators announce the identities of Maureen Brainard-Barnes, Amberlynn Costello and Melissa Barthelmey, following the release of Megan Waterman’s identity a few days before. The four women, all sex workers, would come to be known as the Gilgo Four.
Giglo Beach Murders Task Force formed
February 2022: Investigators form a task force to investigate the Gilgo Beach victims. The multiagency task force identified Rex Heuermann as a possible suspect in March 2022.
Investigators begin to surveil Heuermann and gather evidence to support their case. One key element is DNA evidence collected from the family’s garbage, including DNA taken from a piece of pizza crust. Other evidence includes cell phone data and credit card information.
Rex Heuermann arrested
July 13, 2023: Rex Heuermann is taken into custody and charged with the deaths of Amber Lynn Costello, Megan Waterman and Melissa Barthelemy.
Rex Heuermann’s home searched
July 25, 2023: Police conclude a search of the Heurmann home and property, finding what they described as a lot of evidence.
Rex Heuermann charged with fourth death
Jan. 16, 2024: Heuermann is charged with the death of Maureen Brainard-Barnes.
Manorville woods searched
April 2024: Authorities conducted a weeklong search of woods in Manorville, New York, which included K9 units. The remains of two women, Jessica Taylor and Valerie Mack, were found there in the early 2000s and additional remains from both were also found near Gilgo Beach. Authorities would not officially confirm the search was related to the Gilgo Beach cases.
Heuermann home searched again
May 20, 2024: Police served another search warrant on the Heuermann home. None of the family were present at the time and there has been no word on why police would return to the residence a second time.