University of Colorado police have arrested a CU student investigators believe touched himself after breaking into a female student’s room and also stole underwear from other females in Smith Hall.

Jonathan Rubeck, 18, was arrested Monday evening on suspicion of two counts of felony burglary and one count of misdemeanor theft.

According to officials, on Nov. 10, two female residents in Smith Hall reported a drunk man walked into their room twice at about 5 a.m. The second time, the victim awoke to find the suspect standing over her, touching himself, police said. The victim’s roommate screamed, and the suspect ran out of the dorm room.

Investigators don’t know if the door was locked or how the suspect got in.

Police then also received a report on Friday of women’s underwear found in a Smith Hall men’s bathroom and another report on Sunday of underwear stolen from a female’s room in Smith Hall.

Through tips placing Rubeck near the scene at the time of these incidents, investigators determined he was a suspect in both cases as well as the November incident.

Evidence found in Rubeck’s room in Smith Hall as well as during an interview with Rubeck led to his arrest Monday at 9 p.m. Boulder police spokesman Ryan Huff said dozens of pairs of women’s underwear were found in Rubeck’s room.

Rubeck is a psychology major from Parker. He remains in Boulder County Jail and is scheduled for a first appearance and setting of bond today.

“These are serious crimes that victimized members of our campus community in the places they live,” said CU police Deputy Chief Melissa Zak. “Due to diligent investigative work and help from Smith Hall residents, we were able to arrest this suspect and make our residence halls safer. All indications are that Rubeck acted alone.”

CU police spokesman Ryan Huff said it is possible more charges could be filed, including a sex offense charge for the November incident.

“We’re working with the Boulder DA to determine the appropriate charges,” Huff said.

CU spokesman Mark Miller said Rubeck could also be looking at sanctions from judicial affairs. While he said he could not comment on this specific case, accusations this serious could result in a multi-year suspension or expulsion.

He said officials are also continuing to urge students to be sure to lock their doors and not let strangers into student dorm areas.

“This was great work by the CU police department,” Miller said. “We are working hard to alleviate the concerns of students on the campus.”

Police are still trying to determine if Rubeck was involved in any other incidents. Zak said they are now focused on finding the owners of the stolen underwear to determine if there were additional victims.

Any other potential victims should call 303-492-6666.