LOS ANGELES (CBS) — A Los Angeles County coroner’s report concludes an Encino cosmetic surgeon did not know what he was doing when a patient of his died undergoing a 14-hour liposuction procedure.

KNX 1070′s investigative reporter Charles Feldman reports.

The report says Dr. Ehab Mohamed apparently was not aware of the properties of sedative drugs and how to administer them — accidentally killing a 61-year-old woman with a lethal combination of three medications.

According to the report, “gross medical negligence” was involved in the death of Sharon Carpenter, who paid $100,000 thinking she was getting the best her money could buy.

Robert Stone, the lawyer representing her family, will be at a hearing on Monday when Dr. Mohamed goes before a judge.

Dr. Mohamed insists his patient died because of a heart condition, but the coroner’s report concludes otherwise.

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