Charlie Kirk's killer "blended in well" among the students at the University of Utah because "he appears to be college-aged," Beau Mason, commissioner of the Utah Department of Public Safety, said at a press conference, explaining that there is"good video" depicting the suspected killer."We are confident in our ability to track down that individual," he added."If we are unable to identify him immediately, we will ask the public and the media for assistance in releasing the images" that authorities have, Mason added, stating that"we are doing everything we can to find him", but"we are not yet sure how far he has gotten." Meanwhile, several videos depicting the alleged killer are circulating online: one in which he is lurking on the roof, waiting to fire, and one in which he flees, immediately after shooting in Kirk's direction.