Details Surrounding Lisa Robin Kelly's Death

INSIDE EDITION has details surrounding the final days and death of That 70s Show star Lisa Robin Kelly.

We're learning more about the shocking death of That 70's Show actress Lisa Robin Kelly at the age of just 43.

The last known photo of Robin Kelly was a mugshot taken last year. It's a sharp contrast to how she looked as a bubbly blonde on the show that made stars out of Mila Kunis and Ashton Kutcher.

Robin Kelly's estranged husband, Robert Gilliam, tells INSIDE EDITION that she was treated in hospital emergency rooms four times since May 15th for alcohol poisoning.  

Her latest hospitalization was just this past Sunday when her blood alcohol-level was an astronomical .34, which is borderline fatal.

Dr. Charles Sophy told INSIDE EDITION, "Reports say that she had an incredibly high alcohol level, which will add to any other drugs she might have had. Even alone, the detox from alcohol with a blood level like that is pretty scary."

Robin Kelly spoke with INSIDE EDITION's Jim Moret last year when we found her homeless, living out of her car.

She and her husband decided to divorce just last month. He told us she'd been in and out of rehab 22 times in her lifetime.

Robin Kelly had just checked into her latest rehab center in California and died in her sleep from cardiac arrest.