An autopsy was done on Lisa Robin Kelly on Saturday, but the results will not be known for at least two months.\nA spokesperson for the coroner’s office says that it will take that long to get toxicology results back on the late That ’70s Show star.\nKelly died in her sleep on Wednesday, August 14 after voluntarily checking herself in to a treatment facility.\nHer agent, Craig Wycoff, said in a statement to People magazine the troubled actress had decided to start treatment for “the addiction problems that have plagued her in the last few years”.\nWycoff said he spoke to Kelly on Monday and she sounded hopeful and confident and looked forward to putting this part of her life behind her.\nAccording to TMZ, Lisa Robin Kelly had been arrested at least four times in the past three years for different reasons including, DUI, spousal abuse, and assault.\nLisa Robin Kelly died on Wednesday night, at her Los Angeles home. She was 43-years-old.\nA native of Connecticut, Kelly played the older sister of the character Eric Forman in the 90s Fox sitcom. She made her television debut with the same network in Married…With Children.\nLisa Robing Kelly left That ’70s Show after five years and was replaced by Christina Moore. Kelly admitted in subsequent interviews that she had a drinking problem.\nHer estranged husband, Robert Joseph Gilliam, told Celebuzz, “I love Lisa very much, I saw a side to her that no one else got to see. It’s killing me.”\nThe Inquisitr reported on Friday that even though Kelly had substance abuse problems, officials consider her death a mystery, since no drugs or alcohol were found in her room.\nAuthorities also add that there were no apparent signs of foul play. Gilliam said Lisa Robin Kelly’s addiction to prescription drugs began after she suffered an injury on set.