It happened around noon last Thursday in the basement level of Broadway Performance Hall.
"(The person of interest) walked into the elevator with her - they rode the elevator down together," said Elman McClain, who is the Director of Safety & Security at Seattle Central.
Campus security recovered surveillance video that shows a person of interest on the basement level of Broadway Performance Hall. The man followed the student into a rehearsal room where the victim said she was assaulted.
"She was pounding on the window from inside and some students were walking by the classroom and heard the pounding," said McClain.
The surveillance video shows the victim leaving the room about three minutes after the rehearsal room door closed. Other students came to help, but it appears they weren't exactly sure what was going on.
The video then shows the man standing in the doorway of the rehearsal room where he held the room door open for a moment while the students stood nearby. The man then walks down the hallway and out of the building.
The victim told police a man groped her and attempted to restrain her as she tried to get away.
"We have a very safe campus, a very secure campus and this is - I would say - a pretty isolated incident," said McClain.
The campus is now adding more part-time security officers inside Broadway Performance Hall. They're also requiring students to sign-in and changing the hours when they can rehearse.
"They've sort of locked down the basement here so you can't practice after 5 p.m." said student Bret Spence. "It's a big impact for me because it's the only time I have to come over here."
Campus security posted flyers of the person of interest around the building. They still don't know if he's a student or someone from the community.
"I'm really sorry that happened. It bothers me. You know in this neighborhood there's stuff that happens like that a lot," said Spence.
Police want to speak with the person of interest in the video who is described as a bald, middle-aged white man who was wearing a plaid shirt during the incident. If you recognize him or have any information, call campus security or Seattle Police.