Morris County School Teacher Charged With Sexually Assaulting Teen Student

Thursday, October 2, 2025, 4:00 P.M. ET.  2 Minute Read, By Art Fletcher: Englebrook Independent News,

PEQUANNOCK, NJ.- On Monday, following an investigation, a 53-year-old Wayne, New Jersey, man employed as a teacher at the Pequannock High School was taken into custody and jailed after being charged with multiple child sex crimes in connection with the alleged sexual assault of a student.

     According to Morris County Prosecutor Robert J. Carroll, in September 2025, the Pequannock Police Department and the Morris County Prosecutor’s Office were notified of alleged inappropriate behavior by one of the Pequannock School District’s teachers.

Detectives Uncover Child Sex Crimes

     During the ensuing investigation, Detectives of the Morris County Prosecutor’s Office Sex Crimes/Child Endangerment Unit and the Pequannock Police Department, following interviewing witnesses, including the child victim, determined that on multiple occasions during the previous year, William Arnold, 53, of Wayne, New Jersey, while employed as a teacher at Pequannock High School, sexually assaulted the child who was between the ages of 15 and 16 years old who was a student at the school when the alleged crimes were committed.

     Accordingly, on Monday, September 29, 2025, Arnold was taken into custody and formally charged with one count of first-degree Aggravated Sexual Assault; second-degree Sexual Assault; second-degree Endangering the Welfare of a Child; one count of second-degree Official Misconduct; and one count of fourth-degree Criminal Sexual Contact.

     Following being processed on the charges, Arnold was remanded to the Morris County Correctional Facility pending future court proceedings in Morris County Superior Court in Morristown, New Jersey. Arnold has been suspended from his teaching position by Pequannock School District officials. 

“The rules of the court require us to include a statement that states: The charges outlined in this publication are merely accusations, and the defendant and or defendants are presumed innocent unless and until proven guilty beyond reasonable doubt.”