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shawn. army sergeant daniel perry says he fired that day in self-defense. he claims that the protesters surrounded his car while he was driving through downtown austin and basically ran into a black lives matter protest. his lawyers argue that he had the legal right to open fire after one of those demonstrators raised an ak-47 and pointed it right toward him, so he feared for his life. christina coleman has the very latest. christina? >> reporter: hi, eric. texas governor greg abbott s...