EL CAJON, Calif. — A man suspected of fatally stabbing a woman Tuesday at a College East pharmacy died in a shooting involving San Diego police at a home in unincorporated El Cajon, authorities said.

The fatal stabbing occurred in the 5500 block of Reservoir Drive, Lt. Adam Sharki with the San Diego Police Department said during a briefing.

Around 4 p.m., officers responded to a call of a violent disturbance at Alvarado Pharmacy, where they arrived to the building being locked and had to force entry, according to SDPD Lt. Steve Shebloski. A 66-year-old woman, who worked at the pharmacy, was found with multiple stab wounds to her upper body.

First responders took the woman to the hospital, but she was later pronounced dead, officials confirmed.

Officers at the scene were able to determine the suspect’s identity and vehicle, which led them to his home, Shebloski said.

When police and San Diego County Sheriff’s deputies approached the home near 800 La Cresta Boulevard, located west of Alpine, they contacted the 77-year-old suspect near his vehicle that was parked to the rear of the residence. 

Authorities say the suspect failed to comply with instructions, prompting officers to deploy less lethal bean bag rounds, which they say had no effect.

According to the sheriff’s department, the suspect then reached for what appeared to be a shotgun from inside his vehicle. At that time, an officer involved shooting occurred involving two officers from the police department.

The suspect was struck and died at the scene despite lifesaving efforts by paramedics, authorities said. No officers were injured during the incident.

Police believe the suspect and victim to be employees or co-owners of the pharmacy. The suspect has been identified, but his identity is being withheld at this time.

Sharki said the SDPD homicide unit is investigating the stabbing while the SDSO is handling the shooting involving officers.