12, 2003 , when johnny cash died at the age of 71. Cash had been plagued with poor health and had undergone surgeries on his jaw, heart, and knees before the start of the 1990s. · johnny cash (born , kingsland, arkansas, u. s. — died , nashville, tennessee) was an american singer and songwriter whose work broadened the scope of country and western music. He passed away on sept. · johnny cash died of complications from diabetes on , four months after his wife. · country music lost one of its all-time greatest singers and songwriters on sept. 12, 2003 , at the age of 71 after battling complications from diabetes. · johnny cash died in september 2003 as a result of complications from diabetes. – ) was an american singer-songwriter. · johnny died due to complications from diabetes , which resulted in respiratory failure, said cashs manager, lou robin, in a press release issued by baptist hospital in nashville. · the death of johnny cash, the legendary “man in black,” marked the end of an era for country music. Here is everything to know about the country music legend’s death. The music legend had spent decades singing about hardship, love, faith, and redemption.