Pittsburgh-Area HS Swim Coach Had Sex Encounters With Student: Police

BEAVER COUNTY, PA — A former Riverside School District swim coach faces dozens of felony charges related to an alleged sexual relationship with a student that occurred on school grounds.

According to court documents, Alaina Marshall, 29, of Beaver Falls is charged with 34 counts of intercourse/sexual contact with a student, one count of corruption of minors and one count of unlawful contact with minor - sexual offenses.

Marshall was arrested Wednesday by North Sewickley Township police. She was taken to the Beaver County Prison after being unable to post $250,000 bail and faces a preliminary hearing on March 7.

Marshall was arrested after a Feb. 16 ChildLine call indicated a Riverside High School swim team member was sexually involved with Marshall. North Sewickley police contacted the student and his parents, and the student admitted that a sexual relationship with Marshall began when he was 16 and a sophomore during the 2023-24 school year. The relationship continued into his junior year.

The school district posted a statement on its website acknowledging that a former coach was allegedly involved in misconduct involving a high school student-athlete. The former coach is prohibited from entering district property.

"An internal review confirms that all state and local requirements relating to background and pre-employment checks was completed for this individual," the message stated. "The safety and well-being of our students are our top priority, and we remain committed to supporting our Riverside students and families."

The district encouraged anyone with information to contact the North Sewickley Police Department at 724-843-8118 or the Safe2Say (1-844-723-2729) Anonymous Tip Line.