February 11, 2015 5:50 PM EST

The murder trial of the man accused of killing Navy SEAL sniper Chris Kyle began Wednesday in Texas.

Eddie Ray Routh, 27, has been charged with fatally shooting Kyle and his friend Chad Littlefield at a gun range in Texas in 2013. Kyle’s autobiography inspired the Oscar-nominated movie American Sniper, in which Bradley Cooper played the expert marksman.

Watch #KnowRightNow to catch up on all the latest developments in the trial, and read more here.

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Write to Arpita Aneja at arpita.aneja@time.com.

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