Guitar legend Dickey Betts, who co-founded the Allman Brothers Band and wrote their biggest hit, “Ramblin’ Man,” has died. He was 80. The Rock & Roll Hall of Famer died at his home in Osprey, Florida, David Spero, Betts’ manager of 20 years, confirmed. Betts had been battling cancer for more than a year and had chronic obstructive pulmonary disease, Spero said. [time-brightcove not-tgx=”true”] “He was surrounded by his whole family and he passed peacefully.