MILTON - The son of a Milton woman reportedly found dead in a bathroom shower at her home Sunday afternoon was released Thursday after being located and interviewed by police.

Police found Mark Boyles, 55, who has been described as a "person of interest" in the death of his mother, Vennie Boyles, 80, of 8 Park Lane, Milton, at Dunkin' Donuts on Route 15 in Lewisburg and questioned him before allowing him to leave. Police stressed that Boyles was only interviewed and never officially in police custody.

Boyles lived with his mother and his current whereabouts are unknown.

An autopsy was conducted Tuesday by Dr. Samuel Land on the victim at Lehigh Valley Hospital in Allentown. Northumberland County Coroner James F. Kelley said Friday he is awaiting toxicology results and findings from other tests before revealing the cause and manner of the woman's death.

Kelley continues to assist Milton police, state police at Milton and the Northumberland County District Attorney's Office in the investigation.