The death of Lisa Robin Kelly on August remains a mystery to authorities, with new questions being raised just a few days after this actress passed away at a rehab facility.

TMZ has discovered that both the L.A. County Coroner and the L.A. County Sheriff officers are conducting their own investigations and that the main point of contention is this:

Posted in: Lisa Robin Kelly

Lisa Robin Kelly has lost her battle with substance abuse.

The actress, best known for her role as Eric's older sister on That 70s Show, died last night while asleep inside a rehab facility. She was 43 years old.

Posted in: R.I.P.