Azhawn Harvey, 20, was shot at Thornden Park in Syracuse, New York during Fourth of July celebrations in 2015. He was struck in the head during a dispute on July 4, was taken to hospital, and died five days later on July 9, 2015.

Syracuse police arrested 16-year-old Shaquez Collins and charged him initially with assault in the first degree and criminal possession of a weapon in the second degree. Reports say the shooting grew out of a rivalry between gangs. Collins later admitted involvement and his case moved through the courts; the matter resulted in a sentence for his role in Harvey’s death.

What did anyone who was at Thornden Park that night see or hear that might shed more light on how the dispute escalated?