A Philadelphia Police officer has died from wounds he suffered earlier this summer during a traffic stop shooting.

Officer Jaime Roman was shot in the neck June 22 and died Tuesday Sept. 10, WHYY reports.

It was a somber scene at police headquarters Tuesday night as officials gathered to announce Roman’s death. Mayor Cherelle Parker spoke about the difficulty in dealing with the death of an officer in the line of duty, her first as the city’s chief executive.

“We will not allow his death to be in vain,” Parker said. “It just means we have to continue to work as hard as we possibly can to make sure that the public health and safety of our city is our number one priority, and I shall not be moved.”

Roman had served with the department for nearly seven years.

The suspect, 36-year-old Ramon Rodriguez Vazquez, is being held on $12.5 million bail. The charges against him are being upgraded from attempted murder to murder.