Another prosecutor who was set to try two of the remaining officers charged in the arrest and death of Freddie Gray has left the Baltimore State's Attorney's Office, reports the Baltimore Sun.

The departure of Sarah David follows that of veteran assistant state's attorney Lisa Phelps, who quit last week after State's Attorney Marilyn J. Mosby dropped the three pending cases. Sources close to Phelps said she had objected weeks earlier to trying the case of Officer Garrett Miller, which was to begin July 27.

David confirmed that she had resigned from the office and said she will be joining the office of state Sen. Bobby Zirkin, a Democrat from Baltimore County, as his chief of staff.

David, who joined the office in 2014 and was a prosecutor in the misdemeanor unit, declined to address her reasons for leaving but said they were the same as those reported as the circumstances behind Phelps' departure.