A Butler man was sentenced to prison and ordered to register with state police as a sexually violent predator for the rest of his life Thursday after pleading guilty to charges police filed for having sexual contact with a teenage girl.

Donald W. Reese, 27, was sentenced to serve 12 months, less one day, to 24 months, less two days, in prison, followed by 12 months of probation, after pleading guilty to felony statutory sexual assault.

He was sentenced by Common Pleas Judge Timothy McCune and given a lifetime Megan’s Law registration order after a hearing in which he was found to be a sexually violent predator.

State police arrested Reese in April 2023 after a 15-yer-old girl’s mother went to the Butler barracks with concerns about her daughter being sexually involved with Reese. She told police she found several conversations between them on social media dating to December 2022.

While the woman was searching her daughter’s phone, Reese called via the Snapchat app. Police said the woman answered the call, and Reese initially told her he was turning 18 years old before admitting he was 22.

The woman gave police her daughter’s phone on March 20, 2023. Conversations between the girl and Reese via Facebook Messenger involved concerns from the girl about sexually transmitted diseases.

In an April 12, 2023, interview at the Butler County Children’s Advocacy Center, the girl said she and Reese met in person in February after connecting via Snapchat in December 2022.

Police said the girl reported three instances of sexual intercourse between her and Reese.

At Thursday’s hearing, Julia Lindemuth, a Pennsylvania Sexual Offender Assessment Board member, testified that she found Reese to have chronic anti-social disorder and is likely to offend again after reviewing his juvenile and adult criminal history, police reports and mental health evaluations. She said Reese declined to be interviewed.

She said chronic anti-social disorder is a pervasive disregard for the rights of others beginning in early adolescence.

His first mental health evaluation, conducted when he was 7 years old due to fighting and aggressive behavior, found he was “oppositional and noncompliant,” Lindemuth said.

At least three other evaluations conducted as he grew up found he had impulse control disorder, conduct disorder and ADHD, she said.

Reese has received behavioral health services, counseling, psychiatric services and medication over the years, she said.

Lindemuth said the incidents involving the girl are the only sex crimes he has been charged with and the incidents lasted only a few months, which means he is not a sexual deviant.