He also revealed investigators have identified the remains of a skull and a pair of hands found in March as belonging to 20-year-old Jessica Taylor, whose headless, handless body was found 40 miles away in Manorville in 2003.
Ten sets of remains have been found along the underbrush of Long Island's Ocean Parkway since last December, including the bodies of four missing Craigslist escorts.
Today Suffolk County District Attorney Thomas Spota said he was convinced the prostitutes were all killed by the same man, but admitted police have yet to identify a suspect - and there is likely to be a second killer.
He said: 'It is clear that the area in and around Gilgo Beach has been used to discard human remains for some period of time.
'As distasteful and disturbing as that is, there is no evidence that all of these remains are the work of a single killer.'
Five sets of remains have still not been identified, including the body of a girl aged between 18 and 24 months. Mr Spota said it was not clear whether she had been murdered.
He also revealed that the body of a man found on April 5 was that of a young Asian male in his late teens or early 20s. Mr Spota said he had been murdered, but his death was 'radically different' to those of the other victims. Read More
LONG ISLAND BEACH: HOW MANY KILLERS USED IT AS A GRAVEYARD?
Ten bodies have been found along Long Island beach front since December last year. Police now say they are looking for at least two killers - but there could be as many as four.
Killer One
Police say four Craigslist escorts found near Oak and Gilgo beaches on December 13, 2010, were all murdered by the same man - the so-called 'Craigslist Ripper', who may have been active for several years.
The women were identified as:
Maureen Brainer-Barnes, 25 - last seen 2007
Melissa Barthelemy, 24 - last seen 2009
Amber Lynn Costello, 27 - last seen 2010
Megan Waterman, 22 - last seen 2010
Killer Two
In April, police found two sets of partial remains which have now been connected to the dismembered torsos of two women found in 2000 and 2003 in Manorville, 40 miles away.
Investigators say it is likely one man killed both women - but they say the deaths are not linked to the Craigslist killings.
Killer Three
It seems likely there is a third murderer, responsible for the death of a young Asian man who was killed in a 'radically different way'.
Killer Four?
Two more bodies have still not been identified.
The remains of a toddler have also been found, but police say it is not yet clear whether she was murdered.
Shannon Gilbert, whose disappearance triggered the search, is still missing.