Thirty-four years after the slaying of this city’s first Japanese American police officer, officials said Tuesday that they had arrested a suspect — a former low-level associate of the Black Panthers who, authorities allege, participated in the shooting of Ronald T. Tsukamoto as part of a wave of anti-police violence. Don Juan Warren Graphenreed, 54, was being held in a jail cell inside the Ronald Tsukamoto Public Safety Building — named after his alleged victim. Police said that Graphenreed did not act alone and that more arrests are likely. The investigation has focused in part on former Berkeley members of the Black Panther organization, police said. Tsukamoto’s death in August 1970 made him the third Bay Area officer killed in the line of duty in seemingly unprovoked attacks within two months, after officers in San Francisco and San Jose. Full Story
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