FARMINGTON — Police in Franklin County have interviewed dozens of people in their investigation into a Tuesday morning home invasion that ended in homicide.

Witnesses said some of those questioned also appeared to be giving DNA samples to police but so far officials have not named a suspect or announced any arrests in the investigation into the death of 81-year-old Grace Burton.

Burton was attacked during a home invasion at her single-story apartment at the Margaret Chase Smith Apartments on Fairbanks Road early Tuesday morning.

Burton was stabbed in the head and torso during the attack but was able to call 911 and report the incident around 1 a.m. Tuesday.

She described her attacker as having a thin mustache before she died from her wounds at Central Maine Medical Center in Lewiston later that day, police have said.

Police also said blood from attacker was left at the crime scene and that they were looking for a slightly built man, who was seen wearing a black hooded sweatshirt and carrying a backpack in the vicinity of Burton’s apartment around the time of the attack.

Police have said the attacker entered Burton’s apartment via a window on the back of the buidling, which faces away from the street.

The attacker was likely wounded in the attack and police advised people in the area to be on the lookout for anybody matching this description with cuts on their hands or fingers.

Chris Hardy, the owner of Edmund’s Market in Phillips, said a local man was questioned  Wednesday after he appeared at the store with a bandaged hand.

Employees of the market called police because the man matched the police description.

Hardy said employees saw police apparently taking DNA samples by swabbing the man’s mouth. But late Thursday afternoon Maine Department of Public Safety Spokesman Steve McCausland said no arrests had been made in the case.

Meanwhile local residents remained on edge contemplating a killer in their midst, while friends of Burton planned a memorial service for her and remembered her as a fun-loving, friendly person who enjoyed playing cards, talking politics and remained connected to her long-time church.

According to some reports Burton grew up in the Farmington area, moved away and later moved back to the town.

One life-long friend, Lois Seamon, 81, told the Waterville Sentinel, that Burton was a breast cancer survivor and had recently recovered from a bad fall. “She used to say she was as tough as a boiled owl,” Seamon told the newspaper. “She’s up there shuffling cards and waiting for me.”

Farmington’s Police Chief Jack Peck said Thursday it would not be an exaggeration to say hundreds of people had been interviewed and that police were following up on all leads they recieved on the case.

Anyone with information about suspicious activity on the Fairbanks Road early Tuesday is asked to call Maine State Police at 657-3030, Farmington Police Department at 778-6311 or Franklin County Sheriff’s Department at 778-9891.