Allegheny County police arrest school district security guard for relationship with student

Brentwood, Pa. — A 23-year-old high school security guard is accused of having an inappropriate relationship with a 17-year-old female student.

Police detectives determined that Daniel Stiefvater shared inappropriate images and communicated with the teenage student in person, and through phone and social media.

The incidents happened while on and off school property.

According to court paperwork, the initial complaint about the inappropriate relationship came from two friends of the victim after she told the friends she engaged in sexual contact with the security guard.

Detectives then went to the victim’s home and spoke to her in front of her mother, where police say she confirmed the allegations.

The victim also claims that Stiefvater took interest in her because she was not the most popular kid in school and did not have that many friends.

The victim also stated that while she reciprocated feelings for Stiefvater, she told him they couldn’t have a sexual relationship until she turned 18.

However, the criminal complaint states that the two engaged in sexual contact in August.

Court documents also state the two exchanged sexually explicit pictures, including Snapchat and cellphone photos, as far back as 2020.

Stiefvater was arrested Friday and charged with several felony offenses including institutional sexual assault.

Stiefvater will be transported to the Allegheny County Jail to await arraignment.

If anyone has more information about Stiefvater, contact Allegheny County police.