(CNN) Orlando police shot and killed a hospital patient who claimed he was armed -- but wasn't.

The ordeal started Monday morning when Brian Baker, 35 and a patient at Orlando Regional Medical Center, started telling staff that he had a gun and would "shoot anyone who comes near him," Orlando police said.

At one point, Baker said something like, "It's going to end today," Police Chief John Mina said.

Baker claimed he was a suspect in homicide case, though police are not sure which case he was referring to.

When police tried to approach him, Baker "made movements consistent with pulling or reaching for a firearm," Mina said. That's when three police officers shot and killed the man -- who turned out to be unarmed.

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