State Police are asking Hyde Park business owners and residents to hand over video surveillance footage that might help them find the person who killed a woman found dead in her home on Thanksgiving Day.

Laurie B. Ferguson, 67, was discovered stabbed to death in the Mobile Manor trailer park on Route 9G in Staatsburg, police said. Authorities are searching for video taken by cameras facing area roadways that might yield clues in the investigation, police said Monday.

The areas of interest are:

• Mobile Manor park.

• Route 9G between South Cross Road and North Cross Road.

• Route 9 between South Cross and North Cross.

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• South Cross Road.

• North Cross Road.

A forensic sketch of a potential witness to the murder of Laurie B. Ferguson, 67, released by State Police shows a man with a full beard, thick eyebrows and a thick head of slicked-back hair. The man, police said, is about 5 feet, 10 inches tall, and was accompanied by another man and a young girl, who had dark hair and wore a dress. (Nov. 24, 2012) Photo Credit: New York State Police

• Reservoir Road.

Detectives and officers operating out of a command post at the State Police Rhinebeck barracks continued to interview witnesses Monday while police divers scoured bodies of water in an effort to locate evidence, State Police Sgt. Darren Forbes said.

"We're confident that this is going to be a successful investigation," Forbes said, when asked whether or not the State Police have found leads or a suspect.

On Friday, officers found the victim's 2006 Saturn Ion. The following day, officials released a sketch of a potential witness: a man with a full beard, bushy eyebrows and a thick head of dark, slicked-back hair. The man, police said, is about 5 feet, 10 inches tall and was accompanied by another male and a young girl who had dark hair and wore a dress.

Forbes said Monday that they may have determined the identity of the man in the sketch and are looking at him as a witness. "We have some leads as to who it may be," Forbes said, adding that no weapon has been found.

The man was spotted on Reservoir Road in Staatsburg near where Ferguson's car was found Friday, police said. The site is "within two to three miles" of the crime scene, Forbes said. Police presume the killer stole her car.

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Ferguson's body was discovered after police were alerted that she had missed an appointment.

Ferguson, who was estranged from her husband, lived alone in her trailer. Nothing was stolen from her home, police said.

Ferguson has relatives in the area, including a son, daughter and grandchildren. She was a former food service worker at Haviland Junior High School in the Hyde Park Central School District, according to her obituary. A memorial service for Ferguson is slated for 11 a.m. Saturday at the Hyde Park United Methodist Church.

Anyone with video taken from Wednesday to Friday is asked to contact State Police at 845-876-4049 or 845-677-7300.