An educator at Eustis Middle School in Florida, who was named teacher of the year last month, posted her reaction on social media to the mass shooting at Marjory Stoneman Douglas High School that left 17 dead.

Kelly Guthrie Raley's response has been shared more than 600,000 times since she posted it on her Facebook page, with many more likes.

Raley wrote that mental health issues, lack of available care for them, lack of discipline at home, lack of parental support for teacher discipline of their children, lack of moral values, promotion of violence through video games and the screaming on reality TV have created a culture where compassion is gone and the "permanency of death" is not understood by youths.

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"Those 17 lives mattered," she wrote. "When are we going to take our own responsibility seriously?"

>> Read her full post here