pYears before his untimely death at 60 years old, Jeff Conaway struggled with severe back pain. According to pals, the Grease star’s trouble began when he injured himself during rehearsals for the 1972 Broadway show.pbr pIn, REELZ’s new docuseries Autopsy: Jeff Conaway, family members and close friends of Conaway give details about his final years, speaking of how his worsening medical condition ultimately led to his tragic death.pbr p“He was fantastic,” says the actor’s sister, Carla Conaway Shreve, recalling the hit musical. “It was a great show.”pbr pBut the physical demands of the show had life-changing consequences for Conaway.pbr br accidentally overdosed and caught fatal pneumonia. He was the one who found Conaway unconscious and, along with the actor’s girlfriend, Vikki Lizzi, rushed him to the hospital.pbr pHunter explains that while “Jeff was using medication for what it’s supposed to be used for, it just became an ongoing thing that ultimately got out of hand.”pbr pAutopsy: Jeff Conaway airs Sunday, March 17 at 8 ET PT on REELZ.pbr biWe pay for juicy info! Do you have a story for RadarOnline.com? Email us at tips@radaronline.com, or call us at 800-344-9598 any time, day or night.ibpbr pThe post Jeff Conaway’s Fatal Back Problems Started After ‘Grease’ Injury, Sister Claimsa appeared first on RadarOnlinea.