HAGERSTOWN, Md. — Police say a Hagerstown man wanted for a birthday party slaying in June is being held by Baltimore authorities on drug and firearm charges.

The Herald-Mail of Hagerstown reports Tuesday that Baltimore city police arrested 18-year-old Marcus Longus Friday after pulling over a vehicle for an equipment malfunction.

Longus is being held without bond and faces a preliminary hearing next month.

Hagerstown police obtained a warrant in June charging Longus with first-degree murder and other offenses in the June 24 slaying of 25-year-old Antonio Michael Joyner of Walkersville. Joyner was shot a birthday party in Hagerstown.

Hagerstown police say they don’t know when Longus will be returned to Washington County.