CABRERA: In Dallas, a stunning tragedy following the recent murder trial of former police officer Amber Guyger. A key witness for the prosecution was shot to death Friday night. Authorities say Joshua Brown was found in the parking lot with multiple gunshot wounds. We don't know why he was killed, but he was the neighbor who testified he had heard the confrontation between Guyger and Botham Jean the night she shot him in his own apartment. CNN's Polo Sandoval has more.</s>POLO SANDOVAL, CNN CORRESPONDENT (voice-over): Before his murder on Friday, Joshua Brown made headlines as a key witness for the trial of Dallas officer Amber Guyger.</s>JOSHUA BROWN, WITNESS: My apartment was right here. I can reach out and both apartments probably directly across from mine.</s>SANDOVAL (voice-over): Last week, Guyger was convicted of killing Botham Jean after walking into his apartment in 2018. She claimed to have mistaken his apartment for hers and thought he was an intruder. On the witness stand 10 days before his own shooting death outside his home, Brown testified he heard the shots and saw Guyger outside his apartment. Brown got emotional recounting hearing his neighbor's voice from time to time. Lee Merritt, the civil rights attorney representing the Jean family said on social media, "Brown lived in constant fear of gun violence and that his death, "underscores the reality of the black experience in America." Merritt also said, "Brown deserves the same justice that he sought to ensure for the Jean family." Investigators have released few details on Brown's death, only that witnesses heard gunshots and that they observed a silver four-door sedan speeding away from the scene. Police have not said if the murder is in any way connected to the Guyger proceedings. Polo Sandoval, CNN, New York.</s>CABRERA: The wife of a U.S. diplomat facing backlash in Britain for leaving the country after a fatal car accident she was involved in. Details, ahead. I
Key Witness In Dallas Police Trial Shot Dead