Erie County District Attorney Frank Sedita says photo evidence and witness statements do not back up the charges against 25-year-old Keith Johnson, of Buffalo.
Johnson had been charged with four counts of second-degree murder in the shootings outside City Grill early Saturday. The charges were dismissed Sunday morning.
Johnson is still being held on a parole violation and could be rearrested if authorities change their minds.
Police Commissioner Daniel Derenda says there was plenty of evidence to charge Johnson, including witnesses who identified Johnson by name.