A police officer's son was found stabbed multiple times in the hallway of a building on Gates Avenue in Brooklyn. Renato Scantlebury, 18, was pronounced dead the hospital. A tenant told the Daily News Scantlebury "had gotten into a fistfight with two men outside the building after he made a snide comment about their T-shirts" an earlier. The tenant said, "He died over that?" Another witness told NY1, "He was trying to get away. The......