Fountain City Police Officer Jason Mork said Wednesday he has interviewed about half of the customers and employees present at the WingDam Saloon and Grill Monday night, and that, so far, no one saw how the student entered the dumbwaiter.

The student, 21-year-old Brooke Baures, worked at the restaurant that is just north of Winona, Minnesota. Baures was a senior majoring in social work and a standout gymnast.

Autopsy results were pending Wednesday. Mork said there is no immediate indication any crime was committed.

Buffalo County sheriff's dispatchers got a series of 911 calls about 9 p.m. Monday from the restaurant, where there was a banquet being held on the second floor. The dumbwaiter is used to shuttle drinks and food to the second floor.

According to the Winona Daily News, the opening to the food service elevator is about three feet by three feet. It was not designed for employees to enter and the lifting mechanism works similar to an electric garage door.

Mork said he has talked face-to-face with about 14 of the 28 potential witnesses and said there was no indication how or why Baures entered the food elevator. It was not something employees had done in the past, he said.

The university planned a candlelight vigil Wednesday night.