A caregiver at a California assisted living community was charged last week with murdering two residents.

Police arrested Jianchun Li, a live-in caregiver at Happy Home Care for Elderly in Diamond Bar, CA, June 24 after receiving a call at 8:05 a.m. They arrived to find Monica Moon Lee, 75, and Hee Sook Park, 83, dead, according to the Los Angeles Sheriff’s Department

Li was arrested that afternoon and is being charged with two counts of murder. 

“The tragic and brutal murders of these two elderly women at Happy Home Care are a stark reminder of the need for increased vigilance and scrutiny in our care facilities,” District Attorney Gascón said. “A person responsible for their care is now charged in their murders. We must ensure that all caretakers are held accountable for their actions. Our hearts go out to the families of these victims and we will work tirelessly to bring them the justice they deserve.”

Happy Home Care for Elderly is a state-licensed residential care facility that has capacity for up to six residents. The facility’s other four residents were not harmed during the incident, Lt. Daniel Vizcarra said, according to the Los Angeles Times.

Vizcarra also said that the cause of death is under investigation but that he could confirm “nobody was shot.”

Happy Home Care for Elderly had not responded to a request for comment from McKnight’s Senior Living by the production deadline.