The father of one of the Dallas police officers slain by a sniper in July is suing the Black Lives Matter movement for $550 million in damages.

Enrique Zamarripa filed the federal lawsuit in the Northern District of Texas on Monday, according to the Fort-Worth Star Telegram.

His son, Patrick Zamarripa, was killed by a gunman who ambushed Dallas police officers who were guarding a Black Lives Matter protest on July 7.

"While defendant Black Lives Matter claims to combat anti-black racism," the 43-page lawsuit reads, "the movement has in fact incited and committed further violence, severe bodily injury and death against police officers of all races and ethnicities, Jews and Caucasians. Defendant Black Lives Matter is in fact a violent and revolutionary criminal gang."

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