The city of Aurora tweeted that about 1,700 people attended the vigil in a snowy lot outside the industrial valve manufacturer where several ministers and a rabbi called for healing.

Trevor Wehner was a 21-year-old Northern Illinois University student on his first day as an intern in human resources at Henry Pratt Co. in Aurora and attended the fateful meeting where the gunman was fired and then started shooting.

Police said the shooter was killed during gunfire with officers.