Teacher Accused of Strangling Sister-in-Law in Shared Home

Joseph Horner, an elementary school music teacher, has been accused by prosecutors of strangling his sister-in-law, Victoria Castle, in their shared residence. The incident reportedly occurred Monday morning when Horner asked Castle to assist him with moving a piano in his apartment. Prosecutors allege that once inside, Horner attacked the 25-year-old from behind, placing her in a chokehold until she lost consciousness. He is further accused of sexually abusing the victim before changing his clothes and contacting authorities.

Horner remained at the scene until police arrived. Although CPR was administered and Castle was transported to a hospital, she was pronounced dead shortly after. Horner, who has been married for three years, had no other family members present at the time of the alleged attack, as his wife was reportedly at a bachelorette party. The Oceanside School District has placed Horner on administrative leave pending further review.

Horner pleaded not guilty to the murder charges during a court appearance, where Castle's family was visibly emotional. Castle, who was pursuing a PhD at Stonybrook University, was remembered by her family with deep sadness. Horner's own family was also present but declined to comment. If convicted, Horner faces a potential sentence of 25 years to life in prison, and he is currently being held without bail.