The Brief A family is demanding answers and accountability after a moped driver was killed during a U.S. Park Police chase. One month after federal prosecutors dropped a murder charge connected to a fatal police chase along Connecticut Avenue, the family of the man killed is speaking out to demand answers and transparency from law enforcement. What we know:Nolberto Meza, 46, died last month when a fleeing stolen vehicle slammed into his moped during a U.S. Park Police traffic stop. Since then, Meza’s relatives say they have endured a month of silence from both federal prosecutors and the Park Police. The U.S. Park Police and the U.S. Attorney’s Office have not yet responded to requests for updates on the ongoing investigation.