Weir

Bob Weir, the U.S. guitarist and songwriter who co-founded the Grateful Dead and helped redefine American rock through six decades on the road, has died at 78, his family announced. Weir was diagnosed with cancer in July and had beaten the disease but “succumbed to underlying lung issues,” his family said in a statement posted on his personal website. The statement did not specify where or when he died. “For over sixty years, Bobby took to the road,” the family said. “Bobby will forever be a guiding force whose unique…