The Maryland Attorney General’s Office has identified a Montgomery County deputy sheriff who fatally shot a man in Gaithersburg last week.

Deputy Sheriff Domenic Mash, who is assigned to the U.S. Marshals Capital Area Regional Task Force, shot a man July 20 who was wanted for a home invasion, according to a press release from the Independent Investigations Division of the AG’s office. Mash has been with the department for nine and a half years.

As of Tuesday morning, the identity of the man who was fatally shot had not been released.

According to authorities, officers from the task force went to a townhome in the 100 block of Garth Terrace around 9:30 a.m. to serve an arrest warrant for a home invasion. When officers tried to talk to the 35-year-old man who was wanted, he refused. According to the sheriff’s office, he later tried to leave the townhome through a window and came at a deputy with a knife.

According to the sheriff’s office, officers tried initially to subdue the man with a Taser but were unable to do so. Mash then shot the 35-year-old man, who died at the scene.

According to the AG’s office, a second man was shot and taken to a local hospital to be treated for his injuries.

The FBI’s Baltimore Field Office is investigating the shooting, but the state AG’s office will also conduct its own investigation and write a report, as per state law, according to the AG’s office.

Mash is on paid administrative leave pending the result of the FBI investigation, Assistant Sheriff Christina Calantonio told Bethesda Beat on Tuesday.

Dan Schere can be reached at

Dan Schere

Dan Schere can be reached at