Associated Press - June 10, 2009 2:13 PM ET
WASHINGTON (AP) - Mark Lippert was at the U.S. Holocaust Museum when he heard several loud pops and saw several schoolchildren running toward him.
He said Wednesday that he saw 3 of the children running with horrified looks on their faces. He said when he saw those kid's faces, he knew someone had been shot.
The radio station sales manager from Lasalle, Ill., said the top priority then was finding an emergency exit from the museum.
Police say at least two people were shot at the museum in Washington, D.C. Police spokeswoman Traci Hughes said a person walked into the museum at about 1 p.m. with a rifle and shot a guard. Hughes says the shooter was also shot.