WPIX: The family of a Long Island woman found dead last week in Connecticut say they were the victims of a cruel hoax when they received text messages from their dead daughter's cell phone just days after her disappearance.

According to the mother and father of 24-year-old Rebecca Koster, the first text message was received Sunday, just a day after their child was reported missing.

"Dan has me tied up in a basement, he doesn't know that I have my cell phone. I think I'm in Commack, please help," the text stated.

After receiving the text, Koster's mother Barbara Ross and stepfather Larry Ross, alerted police. The couple was given false hope that their daughter was still alive.

The context of the message prompted police to issue a search warrant at the home where Koster's boyfriend Dan Mayor had been staying. An investigation determined that the message was misleading as Koster was no where insight.

As the search continued, the couple received another text message Monday from Koster's cell phone - adding on to their misery.

"It was driving us crazy," Larry Ross told the New York Post. "We were elated that we might find her, and then we didn't. These guys are just sick and twisted."

Late Monday, authorities found a burnt and butchered body in a North Stonington, Conn. field, later identified as the missing Long Island woman.

Authorities said Koster was last seen at a local bar in Holbrook with Mayor. Mayor told police he dropped her off at home early the following morning, but her parents say she never came inside the home.

Police are still searching for a suspect, as well as the person who sent the twisted text messages to Koster's family. Anyone with information is urged to contact Connecticut State Police at (860) 848-6500.

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