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Baton Rouge police ambush: Investigators search gunman Gavin Long’s home

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Investigators are searching gunman Gavin Long’s home in Kansas City, Missouri to try and find any information that might shed light on his motive. In a YouTube video, Long reacts to the shooting death of Alton Sterling by advocating a violent response. NBC’s Gabe Gutierrez reports for TODAY. (Run time: 1:52)