Read more: Another 'Craigslist Killer' suspected in New York, says Irish cop

The sister of one of the four prostitutes murdered on Long Island has revealed that the killer phoned her from the victim’s cell phone, calling the victim a “whore.”

The body of Melissa Barthelemy, one of four prostitutes murdered by a new Craigslist killer, was identified last week. The call Melissa’s sister received was traced back to a man located in midtown Manhattan.

Melissa was last seen in the Bronx on July 12, 2009. Just days after she disappeared her sister received the calls. Eventually the police tracked the call down and searched Pennsylvania Station and the Port Authority bus station in New York City.

The police also discovered that a call made to Melissa’s voicemail on the day she was last seen came from Massapequa, Long Island, just 20 miles from where she was found.

The authorities have identified the other victims as Maureen Brainard-Barnes of Norwich, Connecticut, Amber Lynn Costello, of North Babylon, Long Island, and Megan Waterman, a 22-year-old Craigslist escort from Scarborough, Maine.

Irish native and police commissioner for Suffolk County, Richard Dormer said, “What activities these victims may have engaged in prior to their murders does not matter. They were young women whose lives were cut tragically short."