John Reynolds, of New Haven, was killed around 5:30 p.m. on Friday, Oct. 4, in the Bella Vista Apartments at 321 Eastern St. in New Haven, police said.
Several people called 911 to report Reynolds was banging on apartment doors and waving a machete, authorities said.
When police arrived, Reynolds had been shot and killed by a resident following a fight, officials said. He died at the scene.
It's unclear why Reynolds was behaving that way, but New Haven Police said he has a history of mental illness and could have been under the influence.
The Office of the Medical Examiner will perform an autopsy on Reynolds' body to understand better what caused the incident.
Police have not filed charges in the shooting, but it remains under investigation.
Investigators ask anyone with information on the shooting to contact New Haven Police detectives at 203-946-6304.
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