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, 6710; 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.

7:05 a.m. - TCM associate Frank Zirger notices Harris bending over the trunk of his car in the parking lot. He appears to be with another male, described as “tall, slender, black pants, black waist-length jacket” (p.7413).

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

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

7:20 a.m. - Sarah Roasberry observes three ca.m.ouflage-clad males in the upper North hall (p.4210)

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

7:30 a.m. - While driving near Belleview, Cherilyn McClain sees a male in a trench coat and wrap around sunglasses (p.13344)

7:30 a.m. - 8:00 a.m. - A large group of black-clad, high school-aged males are spotted on the corner of South Pierce Street and West Polk Avenue. They are clustered around various vehicles, and at least two of them are wearing trench coats. Several are sitting on large, dark-colored backpacks. (pp.7523/9834/13206/13312/13571)

7:45 a.m. - 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 a.m. - Klebold arrives at school. (Michelle Fox, 5194)

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

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

8:41 a.m. - 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)

9:00 a.m. - 10:00 a.m.

9:00 a.m. - A witness sees a “weird,” suspicious student using one of the school’s pay phones. He is wearing black sunglasses, a long black coat, and a black backpack. She picks him out of a photo lineup. (pp.2723-8) Leigh Ann Clark. Redaction is likely Chris Morris.

9:00 a.m. - Klebold arrives at Harris' house (FNU Konen, 10237)

9:05 a.m. - Klebold leaves Harris' house (FNU Konen, 10237)

9:12 a.m. - Harris buys 1 propane tank at the West Ottawa Texaco (17601, IDd: 18077)

9:30 a.m. - Harris and Klebold are seen sitting on Harris' car (Mollie Wechsler, 7356)

9:35 a.m. - Local resident Meg Beck sees a black-clad teenager sitting under a tree near Coal Mine. He is wearing a trench coat and appears to be a “lookout.” (p.13015)

10:00 a.m. - 11:00 a.m.

10:05 a.m. - Harris is seen by the gym wearing a black t-shirt with green writing, black pants, and carrying small black pack. (Daniel Bell (21918)

10:15-10:20 a.m. - Harris and Klebold are seen outside the front of the school between the main hall and the South hall exit door. (Mike Casey, 22404)

10:20 a.m. - Klebold is seen coming out of the social studies wing. (Michael Berry (5384)

10:40 a.m. - About a block from the school, a construction worker sees four teenagers in a black BMW, closely followed by a tan sedan holding two more. He later identifies the BMW as Klebold’s. (Rocky Mountain News, 4-23-99)

10:45 a.m. - Harris and Klebold are seen at the smoker's pit with Brian Sargent (Nicole Dickey, 16279)

10:58 a.m. - Harris brings a large duffel bag and a backpack into the cafeteria. (CCTV)

10:59 a.m. - Harris leaves the cafeteria empty handed. (CCTV)

10:59 a.m. - Klebold brings a large duffel bag and a backpack into the cafeteria. (CCTV)

11:00 a.m. - Harris is seen leaving the school parking lot (Leigh Ka.m.ens, 19939 - she notes 10:55 a.m.)

11:00 a.m. - Lucas Milne observes Robert Perry talking to some friends in the cafeteria. (p.5623)

11:00 a.m. - Shooting begins

11:05-11:10 a.m. Harris is seen at the smoker's pit wearing a trench coat. He's with Brooks Brown, Rachel Scott, & Taran Fleming. (Jennifer Smull, 2183)

11:10-11:15 a.m. - Klebold is seen pulling into student parking lot. (Andrew Beard, 684; manda Mendralla, 16297; Chad Laughlin, ; Tony Martinez, 7533)

11:10 a.m. -11:15 a.m. - Klebold is seen pulling into student parking lot with a passenger (Tony Martinez, 7533)

11:10 a.m. - Klebold is seen entering the cafeteria wearing a trench coat and walks to the vending machines. (Chris Wisher, 1261)

11:10 a.m. - Kelly Hendricks notices two individuals in trench coats exiting a small car in the parking lot. (p.847)

11:10 a.m. - Candice Cushman sees two males in trench coats sitting near the faculty lounge. (p.2795)

11:15 a.m. - Harris, Klebold, and a third, unfa.m.iliar man are seen entering the cafeteria. The man is wearing a white T-shirt and blue jeans, and is later identified by one witness as an associate of Mark Manes. (pp.829-34/1159-60)

11:10 a.m. - 11:15 a.m. - Jennifer Smull sees one of Klebold’s friends come through the main entrance with a heavy black duffel bag. He is wearing a black trench coat and ca.m.ouflage pants. (p.2185)

11:15 a.m. - Patrick Vassar sees four or five black-clad individuals walking away from the main entrance. They are all wearing trench coats, except for one, who is wearing ca.m.ouflage pants. (p.4691)

11:15 a.m. - Jason Brehm notices a round-faced male in a trench coat leaning against a tree by the upper west entrance, with a black nylon bag at his feet. (p.719)

11:20 a.m. - A witness sees Harris and another male in a black trench coat walking near the equipment building. The other male is described as “big and fat, with dark hair.” (pp.1167-8)

11:20 a.m. - Four or five individuals in black trench coats are seen walking toward the cafeteria. (p. 1194)

11:20 a.m. - Ada.m. Ca.m.pbell sees Harris in the parking lot with two or three other males. (p.732)

11:20 a.m. - Right before the shooting, Alisa Owen witnesses a heavyset male in the parking lot. He is wearing a black trench coat and ca.m.ouflage pants. (p.3982)

11:15 a.m. -11:20 a.m. - After the first explosion, Harris is seen talking to Brooks Brown at the top of the stairs by the West entrance. Brooks starts walking down the stairs and Harris then pulls out a gun and shoots out the West doors. (Stephanie Wagner, 1255)

11:30 - After the first shots, Nancy Lindsey notices a male in blue jeans walking toward the school with a duffel bag. She makes eye contact with him and he smiles at her. (pp.979-80)