Overview
- Police identified the suspect as Maurquise Emillo James, 22, a Cogir Potomac medication technician, now charged with first-degree murder in Robert Fuller Jr.’s death.
- Charging documents say James is also charged with attempted first-degree murder, felony assault and use of a firearm after allegedly firing at a Maryland State Police trooper during a traffic stop.
- Detectives say surveillance, staff tips and security logs pointed to an insider who used a wig and mask, propped a side door and disabled its alarm; searches recovered multiple wigs and a mask.
- Ballistic evidence entered into a federal database linked a 9mm casing from the trooper shooting to the firearm used to kill Fuller, leading to James’s arrest in Rockville after a brief foot chase.
- Investigators say a motive remains unknown as interagency teams continue gathering evidence and prosecutors move the case forward; James allegedly administered Fuller’s medication the night before the killing.