18:17

Reynolds High School shooting - Surveillance Video + Police Audio

01:11

Kazan School No. 175 shooting - Video of the aftermath

00:36

Kazan School No. 175 shooting - Video of the school directly after the bombing

02:01

Kazan School No. 175 shooting - Video of the suspect's arrest

00:14

Douglas High School shooting - New 1213 evacuation video 4

01:18

Douglas High School shooting - New 1213 video of police outside 3

01:59

Douglas High School shooting - New 1213 video of police outside 2

01:11

Douglas High School shooting - New 1213 video of police outside 1

00:39

Douglas High School shooting - New video inside room 1213 during the shooting 2

00:12

Douglas High School shooting - New 1213 evacuation video 3

00:17

Douglas High School shooting - New 1213 evacuation video 2

00:14

Douglas High School shooting - New 1213 evacuation video 1

00:20

Santa Fe High School shooting - Snapchat videos

01:25

Kerch Polytechnic College shooting - Video of students escaping from the school (GRAPHIC)

00:31

Kerch Polytechnic College shooting - Video from inside the school

00:50

Douglas High School shooting - Video of SWAT team entering a classroom full of students

00:19

University of North Carolina shooting - Second video of the evacuation

00:31

University of North Carolina shooting - Video of the evacuation

00:28

University of North Carolina shooting - Video of the shooter being taken away

01:54

Douglas High School shooting - Rare video of police entering a classroom

14:10

2007 Virginia Tech shooting - Footage of the aftermath

01:27

2007 Virginia Tech shooting - Student's cell phone videos

01:16

2007 Virginia Tech shooting - Footage of the shooting

02:13

Douglas High School shooting - Lacerra's bodycam video of the shooter's arrest

03:17

Professor Raul Brasil State School shooting - Outside surveillance video

02:00

Douglas High School shooting - Second video of students packed into a classroom

00:48

Douglas High School shooting - Third video of students packed into a classroom

00:44

Douglas High School shooting - Snapchat videos of room 1213 before the shooting

02:13:00

Stoneman Douglas High School shooting - The REAL attack footage

02:34

Santa Monica College shooting - Surveillance video

19:31

Sandy Hook Elementary School shooting - Helicopter footage

03:04:24

Sandy Hook Elementary School shooting - Dash cam video 3

04:05:28

Sandy Hook Elementary School shooting - Dash cam video 2

02:19:19

Sandy Hook Elementary School shooting - Dash cam video 1

00:20

Douglas High School shooting - Video from the Sawgrass Express

03:37

Douglas High School shooting - Snapchat videos

01:55

Douglas High School shooting - Instagram videos from outside

07:11

Douglas High School shooting - Rossman's bodycam footage

05:47

Douglas High School shooting - Greetham's bodycam footage

02:35

Douglas High School shooting - O'Neill's bodycam footage

04:19

Douglas High School shooting - Polo's bodycam footage

01:30

Douglas High School shooting - Pianelli's bodycam footage

00:20

Douglas High School shooting - Mondesir's bodycam footage

00:27

Douglas High School shooting - Sherlock's bodycam footage

01:15

Douglas High School shooting - Johnson's bodycam footage

00:22

Douglas High School shooting - Gonzalez's bodycam footage

00:32

Douglas High School shooting - Dolcine's bodycam footage

00:31

Douglas High School shooting - Eason's bodycam footage

02:04

Douglas High School shooting - Valdes' bodycam footage

01:30

Douglas High School shooting - Stambaugh's bodycam footage

06:19

Douglas High School shooting - New surveillance videos of the scene

38:17

Douglas High School shooting - 911 Calls from inside Building 12

00:28

Douglas High School shooting - Video of Cruz before the shooting

00:42

Santa Fe High School shooting - CCTV of students seeking refuge after the shooting

00:24

Santa Fe High School shooting - CCTV video of the aftermath

00:55

Douglas High School shooting - Video of students packed into a classroom

00:16

Butler High School shooting - Video of the panic inside

00:48

Kerch Polytechnic College shooting - CCTV video of the shooter before the attack

01:26

Kerch Polytechnic College shooting - Video from outside

01:23

Kerch Polytechnic College shooting - Video of the aftermath (GRAPHIC)