The Limestone County Sheriff's office said 75-year-old Larry Garner was found in the Tennessee River just off Douglas Drive.
His death is being investigated as a drowning.
The body and a riding mower were both found in the river, investigators said.
Investigators said Garner was mowing his lawn at the time he and the mower went in the water.
Neighbors have nothing but fond memories of him.
"I saw him this morning. He was on his little cart and down there in his vegetable garden," said neighbor Tony Coffman.
He said Larry Garner didn't just keep his home grown produce to himself.
"He brings squash, cantaloupes, stuff back and forth. Give them to his neighbors," said Coffman.
According to the Limestone County Sheriff's Office Garner fell roughly six feet down a ledge into the Tennessee River behind his house.
His wife found him and called 911 around 1:30, but by then it was too late.
His presence in the neighborhood will be dearly missed.
"He was a friend to anybody that he met. He stopped and talked to everybody. Do anything in the world for you," said Coffman.
What happened makes coffman value life more.
"It makes you think. You don't ever know what tomorrow is. You might not be here tomorrow," said Coffman.
An autopsy is being performed on Garner.
Investigators are looking to see if a medical condition might have led to the accident.
They're also looking at the riding lawn mower to see if it had a mechanical malfunction.
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