The four Vicksburg residents charged in the August attempted robbery of Mutual Credit Union have pleaded guilty in federal court to attempted robbery.

The sentencing date for Greg Ross, 18, 304 Melrose Ave.; Marquis McCroy, 18, 400 Melrose Ave.; Josef Buchanan, 18, 409 Melrose Ave., and Kevin Palmer, 17, 107 Arbor Lane, was set for April 2 in federal court in Vicksburg.

All four face up to 20 years in jail and a $250,000 fine if convicted, U.S. Attorney Woody Bond said.

Palmer had been certified to stand trial as an adult after a hearing in Jackson in September, Bond said.

Palmer, Buchanan and McCroy were arrested hours after the Aug. 16 morning robbery attempt at the Mutual branch at Waterways Experiment Station. Ross was arrested the next day.

On that morning, Mutual tellers told police four men showed up 30 minutes before the bank’s 9 a.m. opening time, and the tellers noticed one of the men pull a ski mask over his face. Police were then called.