A Long Island man accused of killing his grandmother in a fight over what to watch on television is undergoing a mental health evaluation.

Newsday reports 25-year-old Clarence Newcomb of Kings Park was ordered held without bail during a court appearance Sunday.

Newcomb is charged with first-degree manslaughter.

Defense attorney Paul Barahal says his client is in custody at Stony Brook University Hospital undergoing a mental evaluation.

Prosecutors say he suffocated 82-year-old Kathleen Newcomb in the home they shared on Friday morning.

Police say Newcomb and the woman argued over a TV show. He was being treated for migraines before the killing.

Friends and neighbors have said he complained about buzzing sounds that led him to take down the family's smoke detectors to silence the noise.