19-year-old David Knight-Hollis is expected to plead guilty Friday morning to murder. Knight-Hollis is accused of slitting 17-year-old Alyssa Taft's throat in November in Sodus; Alyssa was his former girlfriend.

The Sodus man accused of slitting the throat of his 17-year-old ex-girlfriend is expected to plead guilty to her murder Friday.

David Knight-Hollis, 19, was arrested in November after police said he killed Alyssa Taft at a home on Boyd Road.

His court appearance is scheduled for 9:30 a.m. on Friday.