Timeline

Before the shooting

Harris & Klebold activities

6:00 a.m. - 7:00 a.m.

6:15 a.m. Klebold is seen talking to Nate Dykeman inside the bowling alley. (Justin Kehm, 16290 & 22202)

6:15-6:20 a.m. - Harris is seen at the bowling alley, tells Jessica Rosecrans, "You are such a stuck up bitch, someday you are going to pay for it." (Jessica Rosecrans, 17489)

7:00 a.m. - 8:00 a.m.

7:15 am - Harris and Klebold are seen inside the bowling alley wearing jeans. Harris is wearing his trench coat and Klebold is wearing a black shirt and his Avalanche/Red Sox hat. (Andrew Beard, 684)

7:15 am - Harris is seen in the cafeteria wearing a white t-shirt and blue jeans. (Abigail Boles, 6160, 17969)

7:20 am - Harris walks into the school with Sarah Leahy (Sarah Leahy, 16293)

7:30 am - Harris is seen inside the school wearing a white t-shirt, jeans, and a dark flannel shirt. (Sarah Leahy, 6774)

7:45 am - Klebold is seen looking into the trunk of tan car at Coalmine and Pierce (actually Polk and Pierce) with /3 other people. (20099)

8:00 a.m. - 9:00 a.m.

8:25 am - Klebold arrives at school. (Michelle Fox, 5194)

8:20-8:30 - Klebold is seen sitting in the cafeteria alone. (Brian Deidel, 1388)

8:36 am - Harris buys 2 propane at West Chatfield Conoco (Tubbs, 7780; 17601)

8:41 am - Harris (allegedly) posts something to the internet from his home computer. (CNN.com)

Unknown time a.m. - Harris' neighbor sees Harris and Klebold at Harris' house. The times are redacted. (17997)