Was the anesthesiologist named Mohamed?
I wouldn't worry too much about doctors named Mohamed -- they like their suburban McMansions, kid's private schools and Mercedes/BMWs as much as the next guy. At least not as much as I'd worry about the minimum-wage smurf who picks up the syringe of medication from the clinic pharmacy and hands it to the doctor performing the procedure. Obviously, something went very, very wrong, since Ms. Rivers died. Medication errors are not uncommon at all, even now in 2014. Did she receive the correct medication? Was the dose correct, and not 10 x the required dose? Systems generally fail at their weakest link.
Was there and anesthesiologist?