The Marion County Sheriff's Office identified the dead man as John James Harmonic.

Deputies say a 63-year-old Summerfield man shot and killed himself Sunday after he shot a relative who was trying to check up on him.

The Marion County Sheriff's Office identified the dead man as John James Harmonic.

The shooting was reported around 2 p.m. at 8885 S.E. 142nd Lane in Summerfield, according to MCSO. They found the injured male relative, who had been shot in the arm.

He was taken to a hospital and was later released.

MCSO detectives, along with the SWAT Team Hostage Negotiation Team, went to the home.

The detectives learned that the relative had knocked on the door and that Harmonic had shot him through the screen door. They obtained an arrest warrant.

At about 11:30 p.m., when the SWAT Team entered the residence, they found Harmonic dead from an apparently self-inflicted gunshot wound, according to the Sheriff's Office.

Francis and Bernice Campbell have lived in the Little Lake Weir subdivision across the street and one home site west of Harmonic's residence for four years and have a clear view of his front yard.

Francis Campbell, vice president of the Little Lake Weir Homeowners Association, said Monday that he and his wife knew both the deceased man and the gunshot victim.

Campbell said Harmonic was from Ohio. He said he had talked with him last Thursday, after he cut Harmonic's grass. He said they discussed family issues Harmonic was facing and that Harmonic mentioned he might sell his home.

Campbell said he had stepped out for a while on Sunday afternoon but his wife was home around 2 p.m. when she heard a gunshot.

Bernice Campbell said a man ran from Harmonic's front yard screaming that "John shot him," she said, adding that, "I saw him bleeding."

Francis Campbell said law enforcement personnel evacuated residents in an "armored car" and described a "robot" and a "forklift-like" machine used in the operation.