Byron Williams, 50, died in September in Las Vegas police custody after officers pulled him over for riding his bicycle without a safety light, chased him and restrained him on his stomach as he told them he couldn’t breathe.

Williams’ relatives, who have urged police to release the full body camera video of his arrest, were hurt that a protest last year drew just two dozen people. “We just wanted people to hear us,” Williams’ stepson, Jeffery Thompkins, said.