The ex-wife of a prominent Los Angeles doctor who was gunned down in an ambush-style attack outside his clinic was among five people arrested and charged in his murder.

Ahang Mirshojae, 53, was taken into custody on Thursday and charged with murder four months after Dr. Hamid Mirshojae was found dead in the parking lot of his clinic in the Woodland Hills neighborhood.

NBC Los Angeles identified Ahang Mirshojae as the doctor’s former wife and said law enforcement was seen at her home in a gated community in Calabasas on the day of her arrest.

Officers patrolling the Topanga area just after 6 p.m. on Aug. 23 found the doctor suffering from a gunshot wound after receiving a call about an “ambulance shooting,” police said in a news release.