Some reports have indicated that the family will receive upwards of $1 million for participating.
Peacock had no comment on the alleged payment.
He is also a suspect in several other killings in that area.
Accused Gilgo Beach killer Rex Heuermann (center) appears in court.James Carbone/Newsday RM via Getty Images
He was arrested on a sidewalk in the city.
They were seen at his arraignment this week.
Ellerup has filed for divorce.
The attorneys for Heuermann are also reportedly receiving payments for their participation.
