A Korean War veteran from Ohio died on Memorial Day while trying to replace a weathered American flag on his 20-foot TV tower. An autopsy showed that James Catron died of natural causes; the 83-year-old had a history of heart trouble, according to a local newspaper. A neighbor saw Catron, who was safely belted to the tower, slumped over atop the tower and called 911. Catron was brought down by fire department paramedics. Ohio firefighters with a ladder truck returned later on Memorial Day to replace the flag. (More Memorial Day stories.)