Stefan Moton appears to be controlling his wheelchair with a device he moves with his mouth.
- New Witness
Prosecution calls Young Mook Lee.
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Young Mook Lee had the gunman in a lab at the University of Colorado. "He was just a normal guy," Lee said.
Young Mook Lee said the gunman showed up every day and they worked together on assignments.
Young Mook Lee said the gunman sat at his desk for a week without asking him anything, which led Lee to decide he had to change his strategy to work with the gunman.