David Ray Conley III, 49, was charged with multiple counts of capital murder, in the deaths of six children and two adults.
Five children and three adults were shot point blank in the head.
David Ray Conley III is a black lives matter supporter.
He posted this last week.
David Ray Conley III, 49, had recently moved out of the family home and came back to find the locks were changed, he told police.
So he shot them all in the head.
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Today Conley III was arrested for mass murder.
— CBS News (@CBSNews) August 9, 2015