A man who lives at a transitional-living facility in Kansas City has been charged with fatally shooting another resident.

Twenty-three-year-old Isiah Ferguson was charged Tuesday with first-degree murder and armed criminal action in the death of 20-year-old Samuel Cummins at an apartment complex operated by a nonprofit that provides services for addicts and people with mental illness.

Ferguson is jailed on $250,000 bond. No attorney is listed for him in online court records.

The shooting early Tuesday led to a three-hour standoff at the complex.

Court records say Ferguson told police he was having “suspicions” about Cummins before shooting him. The records say that when police asked for clarification, Ferguson responded, “get him before he get me.”

Ferguson also said he’s been diagnosed with schizophrenia and takes medicine for it.