The man is being held on a charge of murder in the death of a woman shot hours earlier.

FAIRFIELD (AP) – A Fairfield man was arrested at a Palmyra cemetery on a murder charge Friday in connection with the shooting death of his ex-wife in Fairfield hours earlier.

Gregory Warmke, 44, was accused of killing Lesley Bullock, 46, a mother of three and a child protection caseworker for the state Department of Human Services, authorities said.

Warmke was taken into custody after he called the state police barracks in Orono threatening suicide, according to police. Dispatchers conferenced the call with a state police negotiator who spoke with Warmke. A trooper then arrived at the cemetery and took him into custody without incident.

The shooting took place in the late morning at Bullock’s home.

An oil delivery man reported the shooting and told police he saw a man fleeing into nearby woods, said Stephen McCausland, spokesman for the state Public Safety Department. When police arrived, Bullock’s body was found in her driveway.

It was “an obvious case of domestic violence homicide,” McCausland said.

Warmke, a self-employed landscaper, had been married to Bullock for two years prior to their divorce a year ago, he said.

Bullock’s two younger children, ages 12 and 15, were placed with relatives, McCausland said. An older son was in the military.

Warmke was being held at the Somerset County Jail in Skowhegan pending an initial court appearance either Monday or Tuesday.