CBS2 HD reports: She may be the oldest murder victim in New York state history.

Police are hunting for the gunman who killed a 100-year-old woman in her daughters home in the Hamptons.

Suffolk County police say Jessie Burke was discovered by her daughter Sunday afternoon when she returned from the grocery store. The woman was found in sitting in a chair in the den. Police say there was no sign of forced entry and apparently nothing was stolen from the home. Her death was ruled a homicide.

Jessie Burke celebrated her 100th birthday on Aug. 7. Three and half weeks later the matriarch of a well known family here was found shot dead in the back of the head, sitting in a chair in the den of her daughter’s home on Payne Avenue.

Police said there was no break-in, no forcible entry and nothing stolen. Jessie Burke had no caregiver, and leaves behind four children.

Among those being interviewed by police are Jessie Burke’s children. Police said they have no suspects at this time.

Detectives are asking anyone with information to contact the homicide squad or Crime Stoppers at 1-800-220-TIPS.