Dennis Thurnado Glover, 48, lived two doors from Sandra Jean Allen and was in an intimate relationship her, homicide Lt. Rob Schoonover said. Tuesday he was charged with her murder.
Glover reported finding her dead inside her mobile home. Neighbors heard arguing and someone screaming, the Times-Union was told at the scene.
DNA evidence from a blood drop on a shoe belonging to Glover led to the arrest, Schoonover said.
Allen was stabbed several times in the neck. Glover told police he had seen someone leaving the scene.
Glover's girlfriend, who lived with him, said he had left their residence earlier that morning, and a witness described seeing a man matching his description at the house.