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The latest from the Chris Kyle and Chad Littlefield murder trial: new evidence submitted by the prosecution as they try to show that Eddie Ray Routh knew what he was doing when he murdered the two men.

The prosecution is trying to prove that Routh did know what he did by the fact he decided to run from police. An interesting point brought up in the video is that if Routh was drunk or high when he committed the murders, it does not let him off the hook because he chose to put them into his body.

As the trial continues, it appears there will be many more twists and turns to this tragic story.