Long Island Music Teacher Pleads Not Guilty Despite Prosecutors’ Allegations In Sister-In-Law’s Death
A Long Island music teacher charged in the death of his 25-year-old sister-in-law has pleaded not guilty to multiple felony charges, despite prosecutors alleging that he made incriminating statements to police following the incident.
Joseph Horner, 27, appeared in Nassau County court after being charged with second-degree murder and rape in connection with the death of Victoria Castle, a doctoral student at Stony Brook University. Horner entered a plea of not guilty during his arraignment and remains presumed innocent unless and until proven guilty in court.
According to the Nassau County District Attorney’s Office, the incident occurred while Horner’s wife was away attending a bachelorette celebration.
Prosecutors allege Horner asked Castle, who lived in a separate apartment within the same multi-family residence, to assist him in moving a piano. They contend that after she entered the apartment, he attacked her, placed her in a chokehold, and sexually assaulted her. Those allegations have not yet been proven in court.
Authorities say officers responded to the North Massapequa residence after receiving a 911 call on the morning of the incident.
According to prosecutors, Horner remained at the scene until police arrived. During court proceedings, the prosecution alleged that Horner made statements to investigators acknowledging his involvement in the events leading to Castle’s death.
Whether those statements will ultimately be admitted as evidence at trial will be determined through the judicial process, where the defense will have the opportunity to challenge their admissibility and reliability.
Emergency medical personnel transported Castle to a nearby hospital, where she later died from her injuries.
Police arrested Horner at the residence, and he has remained in custody since his arraignment.
During the initial court appearance, Horner formally pleaded not guilty to the charges against him.
Legal experts note that entering a plea of not guilty is a routine procedural step in criminal cases, even when prosecutors allege that a defendant made incriminating statements before or after an arrest.
A not guilty plea preserves the defendant’s constitutional rights and requires prosecutors to prove every element of the charges beyond a reasonable doubt.
The plea does not necessarily indicate that the defense disputes every factual allegation. Instead, it ensures that the prosecution must present admissible evidence in court and that the defense has the opportunity to challenge that evidence through cross-examination, legal motions, and, if necessary, a trial.
Prosecutors also alleged during the arraignment that Horner had developed an interest in Castle over a period of years after first meeting her through his future wife.
Those assertions form part of the prosecution’s theory of the case and remain allegations unless established through the court proceedings.
Following his arrest, the Oceanside School District confirmed that Horner had been placed on administrative leave from his position as a music teacher.
School officials expressed sympathy for Castle’s family while stating that they were monitoring the legal proceedings.
Friends and relatives have remembered Castle as a dedicated doctoral student with a promising future.
Her death has deeply affected the Stony Brook University community as well as those who knew her personally. Family members have asked for privacy while the criminal case moves forward.
The case is expected to proceed through the New York court system in the coming months.
Prosecutors will seek to introduce forensic evidence, witness testimony, and any statements they believe support the charges. The defense will have the opportunity to challenge that evidence and present its own arguments before the court.
As the proceedings continue, the court will ultimately determine whether the prosecution has proven the charges against Horner beyond a reasonable doubt. Until that determination is made, he remains presumed innocent under New York law.
