A 21-year-old University of Colorado Boulder student has been sentenced to four years to life in prison for raping a fellow student following a sorority event in January 2019.

Zachary Roper was convicted of two counts of sexual assault following a five-day trial in October.

“We want to acknowledge and thank the survivor for reporting to law enforcement and contenting to trust our team while the case endured difficult delays due to the Pandemic,” said Senior Deputy District Attorney Laura Kinde in a press release on Friday.

According to the release from the 20th District Attorney’s Office, leaders in the sorority became concerned that the victim was too intoxicated and ordered an Uber for her and her date, Roper.

Authorities found that Roper took advantage of the situation and changed the final destination from the sorority house to his apartment, according to a release from the attorney’s office.

When they arrived at his apartment, Roper and the Uber driver assisted the victim out of the car, and Roper helped her into his apartment, because the victim could not walk on her own, according to the release.

Roper then sexually assaulted the victim.

When the victim and Roper failed to arrive at the sorority house, friends of the two became worried and went to Roper’s apartment and “walked in on the victim passed out and (Roper) sexually assaulting her,” the release read.

The victim received a Sexual Assault Nurse Exam and reported the incident to the Boulder Police Department.

“The survivor of this sexual assault took the difficult and courageous step of reporting it to the police,” said District Attorney Michael Dougherty in a press release.

“As a result of this survivor’s decision to come forward, our office was able to secure justice for her and for our community.”