A resident of a Maryland senior living facility has been charged with first-degree murder on the grounds of fatally shooting two staff members inside the community a day earlier, the police announced on Saturday.

Roy Batson, 63, remains in custody on a no-bond status, Prince George’s County police said in a news release, according to Associated Press inputs. 

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Batson, of Capitol Heights, is accused of killing 46-year-old Mackeda Evans, of Temple Hills, and 46-year-old Michelle Boateng, of Capitol Heights, on Friday at the Gateway Village senior living community in Capitol Heights, just outside of Washington.

Boateng worked and lived at the complex, police said.  

The shooting happened at National Church Residences Gateway Village in Capitol Heights around 9.15 am on Friday, Prince George’s County police tweeted.

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The preliminary investigation found that Batson had confronted Evans on Friday morning about a prior dispute between the two in October over a violation notice, police said. He admitted to going to his apartment, retrieving a gun and returning to the first-floor office area and shooting both victims, police said, AP reported.

Gateway Village is one of 310 communities in 25 states run by National Church Residences, which describes itself as “the nation’s largest provider of affordable senior housing and services.” Its website says the apartment complex about a half-mile (0.8 kilometers) east of Washington includes studio and one-bedroom units for “seniors age 62+.”

A county website describes the property as subsidized government housing for seniors with low incomes.

Earlier, National Church Residences spokeswoman Cindy Young had said they “are extremely heartbroken” that two staff members were killed.

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“We are proud of the heroic and swift actions of our staff to ensure that our residents were protected and kept safe. Our hearts go out to the families of our two team members who lost their lives in this tragic and unfortunate incident,” her statement said.

Police initially said they were searching for any additional victims or suspects and people should shelter in place, but they later tweeted that one male suspect was in custody and there was no ongoing threat to the community.

Earlier, before the arrest, a nearby school was temporarily placed on lockdown as a precaution, and police asked concerned relatives of residents to gather at a nearby firehouse.

With inputs from the Associated Press