Syd Barrett, the troubled Pink Floyd co-founder who spent his last years in reclusive anonymity, has died, the band said on Tuesday. He was 60. A spokeswoman for the band said Barrett died several days ago, but she did not disclose the cause of death. Barrett had suffered from diabetes for years.The surviving members of Pink Floyd – David Gilmour, Nick Mason, Roger Waters and Richard Wright – said they were “very upset and sad to learn of Syd Barrett’s death.” “Syd was the guiding light of the early band lineup and leaves a legacy which continues to inspire,” they said in a statement. Barrett co-founded Pink Floyd in 1965 with Waters, Mason and Wright, and wrote many of the band’s early songs. The group’s jazz-infused rock and drug-laced, multimedia “happenings” made them darlings of the London psychedelic scene. But Barrett suffered from mental instability, exacerbated by his use of LSD. His behavior grew increasingly erratic, and he left the group in 1968.