A 34-year-old former school janitor was found guilty Wednesday in the rape of a 15-year-old student which ended in pregnancy.

Victor Milhouse convicted in Dallas County of second-degree rape. The trial last three days and the jury deliberated only about 30 minutes before returning the guilty verdict, said District Attorney Michael Jackson.

Milhouse met the victim while he was a janitor at Southside High School. The incident happened in May 2015. The victim told police, and later testified in the trial, that Milhouse approached her in her classroom and asked for her phone number. The two began communication by phone call and text messages.

She said that one night, Milhouse contacted her and asked her where she was. She ended up walking from her cousin's house to meet him at a truck stop. He then took her to McDonalds and the Raceway convenience store.

After the stops, the victim said, Milhouse continued to drive until they arrived at a home. He told her to get out of the car and she became afraid when she saw a gun on the console. He grabbed her by the arm, forced her into the home and ordered her to undress. According to the victim's testimony, Milhouse was "aggressive and rough."

Milhouse then forced sexual intercourse on the victim. Afterward, he warned her not to tell anyone and said, "You don't know what I'm capable of."

The victim said she saw Milhouse at the school over the next few days and he tried to call her. Several months later, she discovered she was pregnant as a result of the rape. Her little girl was born Jan. 27, 2016.

Authorities were notified of the incident in September 2015. At that time, Milhouse told investigators the sexual contact was consensual. He was arrested for second-degree rape and DNA testing later confirmed he was the father of the victim's child.

Dallas County Circuit Judge Donald McMillian ordered a pre-sentencing investigation and report. The sentencing is set for Jan. 29, 2018.

Jackson said Milhouse faces up to 20 years in prison. "These grown men and women should find an adult to have sex with,'' he said. "Furthermore, school employees at schools should be working, not preying on the students."