It was revealed on Tuesday that the serial killer who dumped his victim's bodies in the thick brush along several miles of the Long Island beachfront may have dismembered several of them, law enforcement authorities have told ABC News.
ABC News has also learned that at least one of the victims died by "homicidal asphyxiation," which could mean strangulation or being smothered.
The grisly twist is the latest revelations as police continued to uncover the trail of bodies left there by at least one killer.
Investigators have determined that bones found Monday were human, bringing the body count to nine and possibly 10 victims. It's still not clear whether a skull found alone Monday was part of victim number 9 or would be victim number 10.
The bodies were strung out over a 3.5 mile stretch of beach with five of the bodies spaced out about 500 feet apart, police said.
While at least several of the victims appear to have been killed and dumped by a serial killer, authorities had not yet ruled out the possibility that more than one killer was responsible for the growing pile of human remains, which included those of a child.