The husband of a woman fatally shot in a Fairland home last week turned himself in on Saturday, Montgomery County police said Monday.

Edwin Javier Aragon allegedly killed his wife, 54-year-old Sarahi Concepcion Aragon-Cruz, on Thursday.

Police said they immediately identified Aragon, 58, as a suspect.

The couple argued inside the Fairland home before Aragon fatally shot her and left, they said.

The shooting occurred around 5:40 p.m. at a home in the 3000 block of Memory Lane. First responders attempted to save Aragon-Cruz’s life but she was pronounced dead at the scene.

Detectives obtained an arrest warrant charging Aragon with first-degree murder and use of a handgun in the commission of a felony.

He turned himself in around 8:30 p.m. Saturday to the 3rd District station on Milestone Drive in Colesville, police said.

Aragon is being held in jail without bond. It was unclear Monday afternoon if he had retained an attorney.