21.   The classmates who saw the shooting will carry the image forever.

22.   The Littleton, Colo., shootings can be seen as a tragic case of denial at work.

23.   The two friends, who saw the shooting, tried to drive away, but their car stalled, officials said.

24.   There was no resistance, according to several residents of the charred building who said on Thursday that they had seen the shooting.

25.   Was in the choir classroom and ran outside immediately without seeing the shootings.

26.   All of the other officers involved in the chase have denied seeing the shooting.

27.   Arapahoe County Sheriff Pat Sullivan and Taylor have denied he saw the shooting, and authorities deny any cover-up.

28.   Hardi died instantly, according to company employees who saw the shooting.

29.   Hardi was killed instantly, according to company employees who saw the shooting.

30.   He had seen grisly shootings that left blood and entrails in public streets.