‘Disgruntled’ Patient Charged With Killing Dentist, Injuring 2 Employees

Murder charges were filed Tuesday against a “disgruntled” former patient in a Feb. 29 shooting at a California dental office that killed a dentist and injured two others, the San Diego County district attorney announced Tuesday.

El Cajon resident Mohammed Abdulkareem, 29, pleaded not guilty to one count of murder and two counts of premeditated attempted murder. He is being held without bail.

Dr. Benjamin Ariel Harouni, 28, suffered multiple gunshot wounds when Abdulkareem allegedly “burst into” the Smile Plus Dentistry office in El Cajon at abut 4:15 p.m. on Feb. 29 and fired at least 23 shots with a semiautomatic handgun, authorities said . Harouni died at the scene.

Two other employees were also injured in the shooting, authorities said, but were in stable condition.

Office manager George Issaian was shot five times, his wife, Abby Issaian, told NBC7. She said Abdulkareem began to “terrorize” her husband’s office in 2022, repeatedly visiting to complain about the dental treatments he received from Harouni.

Administrative assistant Yareli Carrillo was identified by her father as the second injured employee. His daughter, 27, was shot in the legs, he told NBC 7 .

After the shooting, Abdulkareem fled in a rented truck he had parked nearby, authorities said. He was arrested later that evening by Balboa Park.

Five days before the shooting, Abdulkareem legally purchased a handgun “consistent” with the one used in the killing, authorities said. A loaded semiautomatic handgun and ammunition were found in his possession when he was arrested, investigators said.

The district attorney’s office said the investigation is ongoing. Its hate crimes team is assisting in reviewing “all possible motives” for the killing of