How many shootings [D][1-6]?
[D6]
https://www.nytimes.com/2019/12/06/us/nas-pensacola-shooting.html
[D5]
https://www.usatoday.com/story/news/nation/2019/12/05/pearl-harbor-shooting-dead-sailor-navy-dod-defense/2617338001/
[D4]
https://www.usatoday.com/story/news/nation/2019/12/04/jackson-state-university-shooting-lockdown-lifted-person-shot-nearby/2609270001/
[D3]
https://www.nbcnews.com/news/us-news/oshkosh-wisconsin-school-shooting-leaves-student-officer-injured-n1094856
[D2]
https://www.nytimes.com/2019/12/02/us/waukesha-south-high-school-shooting.html
[D1]
https://www.nbcnews.com/news/us-news/10-people-shot-new-orleans-police-say-n1093721
Q
[D6]
https://www.nytimes.com/2019/12/06/us/nas-pensacola-shooting.html
[D5]
https://www.usatoday.com/story/news/nation/2019/12/05/pearl-harbor-shooting-dead-sailor-navy-dod-defense/2617338001/
[D4]
https://www.usatoday.com/story/news/nation/2019/12/04/jackson-state-university-shooting-lockdown-lifted-person-shot-nearby/2609270001/
[D3]
https://www.nbcnews.com/news/us-news/oshkosh-wisconsin-school-shooting-leaves-student-officer-injured-n1094856
[D2]
https://www.nytimes.com/2019/12/02/us/waukesha-south-high-school-shooting.html
[D1]
https://www.nbcnews.com/news/us-news/10-people-shot-new-orleans-police-say-n1093721
Q