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The Last Word
Dallas shooter ended five promising lives
MSNBC's Lawrence O'Donnell pays tribute to the five police officers who were killed in the Dallas shooting: Brent Thompson, Patrick Zamarripa, Michael Krol, Lorne Ahrens, and Michael Smith.
Tragedy in Dallas
Parkland student: Trump’s stance to arm teachers is ‘crazy’07:15
'One More Thing': Dallas takes a stand against the NRA01:21
'Old school' hack alarms Dallas alert system08:27
Police ambush killings on the rise04:09