結果 : what time do most mass shootings occur
0:59

#US vs. UK mass #shootings

MSNBC
408,349 回視聴 - 1 年前
2:02

Why are mass shootings on the rise in the US? - BBC News

BBC News
47,586 回視聴 - 1 年前
2:36

Deadliest mass shootings in recent US history

ABC News
241,992 回視聴 - 2 年前
9:27

Why US gun laws get looser after mass shootings

Vox
1,379,425 回視聴 - 2 年前
3:24

Why are there so many mass shootings this year?

NBC News
129,934 回視聴 - 1 年前
37:57

Deadly Mass Shootings in America- Part 1

CLHB Homeland Security Symposium Series
501 回視聴 - 2 年前
1:33:06

Advancing Understanding & Informing Prevention of Public Mass Shootings, Part 2

National Institute of Justice
967 回視聴 - 3 年前
1:30

Warning Signs for Mass Shootings

NowThis Impact
7,072 回視聴 - 2 年前
21:56

EXTENDED INTERVIEW: Psychologist addresses trends surrounding mass shootings in America

12NewsNow
728 回視聴 - 2 年前
1:02:50

Contagion in mass killings and school shootings

NIMBioS
117 回視聴 - 5 年前
2:31

Deadly start to 2023 as mass shootings pervade nation

MSNBC
31,977 回視聴 - 1 年前
1:03

Data says most firearm deaths don't happen during mass shootings

FOX 2 St. Louis
617 回視聴 - 2 年前
1:41

Experts share research on mass shootings, how to stop them

WBAL-TV 11 Baltimore
582 回視聴 - 1 年前
8:37

The challenge of preventing mass shootings through mental health records

PBS NewsHour
3,944 回視聴 - 6 年前
1:47

Americans blame these three things for why mass shootings keep happening

11Alive
594 回視聴 - 5 年前
1:29

US has more mass shootings than other nations

Scripps News
7,814 回視聴 - 7 年前
3:22

What will it take to end mass shootings?

10 Tampa Bay
62 回視聴 - 5 年前
1:25

10 Deadliest mass shootings in modern US history - ABC15 Digital

ABC15 Arizona
453 回視聴 - 5 年前
3:13

Do More Mass shootings Happen in "Gun-Free" Zones? - AZ Fact Check

azcentral.com and The Arizona Republic
5,373 回視聴 - 5 年前
5:48

How other nations have dealt with gun safety following mass shootings

PBS NewsHour
20,347 回視聴 - 2 年前