(CBS) The rapper O.D.B., a founding member of the Wu-Tang Clan whose erratic behavior and incessant legal troubles made him a figure as wild as his lyrics, collapsed and died inside a recording studio at age 35. The cause of death was not immediately clear, but O.D.B. had recently finished a prison sentence for drug possession and escaping a rehab clinic. He had complained of chest pains before collapsing Saturday, and was dead by the time paramedics arrived, said Gabe Tesoriero, a spokesman for O.D.B.'s record label, Roc-a-Fella. O.D.B. would have turned 36 on Monday.