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PARKLAND, FL - FEBRUARY 23:  Crime scene tape is seen outside Marjory Stoneman Douglas High School as teachers and staff are allowed to return to the school for the first time since the mass shooting on campus on February 23, 2018 in Parkland, Florida. Police arrested 19-year-old former student Nikolas Cruz for killing 17 people at the high school.  (Photo by Joe Raedle/Getty Images)
PARKLAND, FL - FEBRUARY 23:  Crime scene tape is seen outside Marjory Stoneman Douglas High School as teachers and staff are allowed to return to the school for the first time since the mass shooting on campus on February 23, 2018 in Parkland, Florida. Police arrested 19-year-old former student Nikolas Cruz for killing 17 people at the high school.  (Photo by Joe Raedle/Getty Images)

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    Parkland 911 calls reveal response discrepancy

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Parkland 911 calls reveal response discrepancy

The armed resource officer for Marjory Stoneman Douglas High School who didn't enter the building where an active shooting was taking place said through his attorney that he thought the shots were coming from outside. But in dispatch audio of the incident, he said he had heard that it was "by, inside the 1200 building."

Parkland 911 calls reveal response discrepancy

The armed resource officer for Marjory Stoneman Douglas High School who didn't enter the building where an active shooting was taking place said through his attorney that he thought the shots were coming from outside. But in dispatch audio of the incident, he said he had heard that it was "by, inside the 1200 building."