The mysterious death of Warrant singer Jani Lane has shocked fans across the world and left his mourning family with endless unanswered questions.

"Alcoholism is not something he chose," Lane's older sister, Vicky Oswald-Ley told RadarOnline.com in an exclusive interview. "It’s something he fought everyday and it just won."

Lane was found dead at 47 in a Woodland Hills, Calif. Comfort Inn on Thursday at around 5.30 p.m., although the cause of death has not yet been determined, Vicky is convinced that drink, not drugs, was the reason.