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20 abr 1999 ano - April 20: Most Deadliest School Shooting in US

Descrição:

Columbine HS students killed 15 & wounded 23 ppl -> stricter safety procedures, but school shootings freq. is alarming.

Adicionado na linha do tempo:

1990s Timeline Part 2

ByJulie Berichon

8 mai 2019

0

0

308

Data:

20 abr 1999 ano

Agora

~ 26 years ago

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