POTOMAC, MD — A 22-year-old medication technician at a Potomac senior living facility has been charged with first-degree murder after allegedly donning a disguise to fatally shoot an 87-year-old resident in his room on Valentine's Day, according to Montgomery County Police.
Maurquise Emillo James of Baltimore, who had worked at the Cogir of Potomac senior living center since October 2025, was arrested and charged with first-degree murder in the Feb. 14 death of Robert Fuller Jr., according to police charging documents reported by NBC News. James also faces charges of attempted first-degree murder of a Maryland state trooper, felony assault, and using a firearm during a crime of violence, the documents show.
Fuller, a retired Navy Reserve officer and former attorney who had donated millions of dollars to institutions in Augusta, Maine, was discovered shot in the head in the apartment he shared with a partner at the facility on Potomac Tennis Lane, according to the court filings. Investigators have not yet established a motive for the killing, as reported by NBC News.
"We do not have a good sense of why he shot and killed Mr. Fuller," Montgomery County Police Capt. Sean Gagen said at a news conference, according to NBC News. "Upon speaking with him, he said their relationship was very good and he would have never hurt Mr. Fuller."
How the Investigation Unfolded
According to the charging documents reported by multiple outlets, the events leading to James's arrest paint a disturbing picture of alleged premeditation. On the night of Feb. 13, James reportedly administered Fuller his usual dose of the painkiller oxycodone, then returned later to ask whether the medication "had kicked in yet" — a visit Fuller's partner described to detectives as "very odd," since James did not typically return after dispensing medication.
Security footage from approximately 5 a.m. on Feb. 14 captured an individual wearing what appeared to be a mask, a wig, and a distinctive plaid jacket approaching a seldom-used side entrance of the building, according to the police documents. The person entered a stairwell and was seen roughly 12 minutes later running away from the building through the same door.
Investigators determined that the door had been propped open with a folded paper towel and that a battery had been removed from a security sensor that would have triggered an alarm, according to the charging documents. These details led detectives to suspect the killing was carried out by someone with inside access to the facility, as reported by NBC News.
The case broke open after police released a short video clip on Feb. 20 highlighting the suspect's distinctive walk and jacket, according to reports. An anonymous tipster subsequently contacted police, indicating the person in the footage had a familiar gait and may have worked at the facility. Then, on the evening of Feb. 24, a Cogir supervisor noticed James lingering at the facility well after his shift had ended and questioned him — at which point James reportedly grabbed his belongings and left quickly, according to the court documents.
In the early morning hours of Feb. 25, a state trooper pulled over a silver Infiniti sedan with no license plates, according to the charging documents. As the trooper approached, the driver allegedly opened fire before fleeing. The trooper was not seriously injured, as reported by WTOP. James was arrested later that afternoon in Rockville, Maryland, and was subsequently connected to Fuller's murder after ballistics experts matched a shell casing from the trooper shooting to the weapon used to kill Fuller, according to police.
When investigators searched James's residence, they recovered several wigs and a mask, according to the charging documents.
CMS Inspection History
While the shooting occurred at Cogir of Potomac, a private senior living center, the broader landscape of elder care in the region raises important questions about resident safety in congregate care settings. The Fairland Center, a 92-bed for-profit nursing facility in nearby Silver Spring, Maryland, illustrates some of the systemic challenges facing long-term care in the state.
According to the Centers for Medicare & Medicaid Services, Fairland Center holds an overall rating of just 2 out of 5 stars, with similarly low marks for both health inspections and staffing levels at 2 out of 5 stars each. The facility's quality measures rating stands slightly higher at 3 out of 5 stars.
CMS records show the facility has accumulated 94 total deficiencies across 19 inspections. During its most recent inspection on Nov. 20, 2025, federal surveyors cited the facility for four separate deficiencies, all at a "D" severity level, which indicates isolated incidents with the potential for more than minimal harm. These citations included failures to ensure services met professional quality standards, inadequate pharmaceutical services, medication error rates at or above 5 percent, and improper drug labeling and storage practices, according to CMS records.
Federal regulations require all long-term care facilities receiving Medicare and Medicaid funding to maintain adequate staffing levels, ensure proper medication management, and provide care that meets professional standards of quality. The concentration of medication-related deficiencies at area facilities underscores the importance of proper oversight of staff responsible for dispensing controlled substances — a role that James held at Cogir.
Ownership & Operations
Fairland Center operates as a for-profit corporation, according to CMS records. The broader senior living industry has faced increasing scrutiny over staffing practices, background check protocols, and security measures at facilities housing vulnerable elderly populations. The circumstances of Fuller's death — allegedly at the hands of a staff member with access to both the resident and the building's security systems — are likely to intensify calls for stronger employee vetting and surveillance safeguards at senior care facilities.
Cogir Senior Living, which operates the Potomac facility where the shooting occurred, has not publicly commented on its hiring and security protocols in the wake of the incident, according to published reports.
Resources for Families
Families with loved ones in Maryland long-term care facilities who have concerns about resident safety, staffing, or quality of care are encouraged to contact:
- Maryland Long-Term Care Ombudsman Program: 1-800-243-3425 - National Elder Care Locator Hotline: 1-800-677-1116 - Online Resources: [ltcombudsman.org](https://ltcombudsman.org)
The ombudsman program advocates for residents of nursing homes, assisted living facilities, and other long-term care settings. Families can file confidential complaints about care quality, abuse, neglect, or safety concerns. In emergency situations involving immediate danger to a resident, families should call 911.
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