ABC News November 15, 2023

Gilgo Beach suspect Rex Heuermann's estranged wife goes to court for 1st time

WATCH: Gilgo murder suspect's estranged wife in court

The estranged wife of Gilgo Beach, New York, murder suspect Rex Heuermann attended one of his court appearances for the first time on Wednesday.

Asa Ellerup filed for divorce six days after Heuermann's July arrest for the murders of three sex workers. He has pleaded not guilty.

Pool/ABC News
Rex Heuermann arrives Suffolk County Court in Riverhead, New York, Nov. 15, 2023.
MORE: Gilgo Beach suspect Rex Heuermann not a 'monster,' maintains his innocence: Attorney

Heuermann's routine court appearance on Long Island on Wednesday was to allow attorneys to work out scheduling matters.

Pool/ABC News
Rex Heuermann arrives Suffolk County Court in Riverhead, New York, Nov. 15, 2023.

Ellerup, who recently visited Heuermann in jail, is under contract with a production company, according to her attorney.

Ellerup's attorney has signaled she plans to attend every court date going forward so she can see the evidence for herself.

WABC
Asa Ellerup at Suffolk County Court in Riverhead, N.Y., Nov. 15, 2023.

Ellerup told ABC News in July after the arrest, "[My children] have been crying themselves to sleep and I've been crying myself to sleep, too."

MORE: Gilgo Beach murders: A timeline of the investigation

Heuermann was arrested in July for the murders of Melissa Barthelemy, Megan Waterman and Amber Costello, whose bodies were found on Long Island in 2010.

Heuermann is also the prime suspect in the death of a fourth woman, Maureen Brainard-Barnes, who vanished in 2007, though he has not been charged in that case. Prosecutors said the investigation into Brainard-Barnes' murder is ongoing.

He is due back in court on Feb. 6.

Newsday via Getty Images
A police Investigator works in the backyard of Gilgo Beach murders suspect Rex Heuermann's home in Massapequa Park, New York, July 14, 2023.
Newsday via Getty Images, FILE
In this July 18, 2023, file photo, evidence is removed from the home of Rex Heuermann, the suspected Gilgo Beach serial killer, in Massapequa Park, New York.