John Michael Bowlen, the son of Broncos owner Pat Bowlen, was found guilty of harassment Thursday by an Arapahoe County jury.

The charges stem from a domestic violence case in which Bowlen pushed his girlfriend against a bathroom wall on June 3, 2015. He was also charged with a Class 1 misdemeanor for allegedly hanging up the phone when the woman tried to call 911.

The jury found Bowlen guilty of a Class 3 misdemeanor charge of harassment, according to a news release from the Arapahoe County District Attorney’s office.

Bowlen was sentenced to 24 months of probation with drug and alcohol evaluations. He also was ordered to undergo a mental health evaluation.

In June, Bowlen’s girlfriend told investigators that he was under the influence of “whippets” — nitrous oxide — and alcohol. The two had been dating for about 10 months, and she told police there were “previous incidences of verbal abuse,” according to a warrant in the case.

The Broncos placed Bowlen, a marketing employee, on an indefinite leave of absence after the arrest.

In the 911 call from Bowlen’s girlfriend, she screamed and hung up. The dispatcher called back and Bowlen answered.

“She has had seven beers,” Bowlen told the dispatcher. “She is 95 pounds, and she is being picked up by another male who she works out with. She is fine, and she is trying to cause a problem. As the blood of the city, I’m telling you right now, nothing is wrong. She is leaving my house.”

Bowlen went on to assure the dispatcher that he was sober and had “done nothing wrong.”

“I’m a man of the city, a friend of the mayor, and everybody knows exactly who I am,” he said. “I’ve been going through a lot because I’ve been taking care of my dad.”

Jordan Steffen: 303-954-1794, jsteffen@denverpost.com or @jsteffendp