Lisa Robin Kelly, who played Laurie Forman on the Fox series That '70s Show, passed away at the age of 43 yesterday. The cause of death was not released, but she died at a California rehabilitation facility that she checked herself into earlier this week, to deal with her alcohol abuse issues. Here's a statement released by her agent.

"Unfortunately Lisa Robin Kelly passed away last evening. I spoke to her on Monday and she was hopeful and confident, looking forward to putting this part of her life behind her."
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The actress had been arrested four times over the past three years on DUI and spousal abuse charges. She had recently filed for divorce from her husband, Robert Joseph Gilliam, who she had a troubled relationship with.

After guest starring stints on a number of shows in the early to mid 1990s, such as Murphy Brown, Married with Children and The X-Files, Lisa Robin Kelly landed the role of Laurie Forman on That '70s Show in 1998, the older sister of Topher Grace's Eric Forman. She left the show after three seasons, but was invited back towards the end of Season 5, only to leave again at the beginning of Season 6. She also appeared in films such as Amityville: Dollhouse and Jawbreaker.