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Former Highlands teacher charged with sexually assaulting, extorting 2 minors

Megan Swift
| Friday, December 5, 2025 11:21 a.m.
(TribLive)

A former Highlands School District teacher is being charged with sexually assaulting and extorting two young students at his Brackenridge home.

Sean M. Dicer, 53, is accused of assaulting the boys, who are now 16, when they were 11 and 12 years old, according to a criminal complaint filed Thursday.

One of the boys, who told police he met Dicer at a park when he was 8, said he was assaulted at least 10 times, according to the complaint. Dicer acted as a father figure to him growing up, the complaint said.

Police said the alleged assaults occurred during the summer of 2021 at Dicer’s home.

When one boy said he would tell people what happened after the summer was over, Dicer apologized and said he would give the boy “anything he wanted,” according to the complaint.

Police said Dicer paid one of the boys via Cash App more than $6,000 since 2022 to perform sexual acts. The boy provided police with proof of payments, investigators said.

The investigation began when Tarentum police on Nov. 7 forwarded Allegheny County Police a report made to ChildLine, the state’s child abuse hotline, by a 16-year-old boy claiming he had been abused several years earlier by Dicer.

Over the next several days, police interviewed both boys.

Police arrested Dicer Thursday and took him to the Allegheny County Jail.

He is charged with involuntary deviate sexual intercourse, unlawful contact with a minor, indecent assault, two counts each of institutional sexual assault and sexual extortion, numerous counts of corruption of minors and unlawful contact with a minor.

A district judge denied bail. Dicer is scheduled for a preliminary hearing on Dec. 17, according to online court records.

Dicer taught in the district until 2022, when he resigned, according to district Superintendent Monique Mawhinney.

Mawhinney declined to say how long Dicer was employed or what subjects and grades he taught.

She also would not tell TribLive when the district became aware of the allegations or if Dicer had ever been disciplined or had been accused of inappropriate conduct.

Mawhinney said the district could not comment on “specific personnel issues.”

The state Department of Education reflects Dicer’s teaching status as retired and lists no disciplinary history.


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