The Daily News article sheds further light.
But the biopsy--and the use of propofol instead of inserting an airway--remain a mystery.
This doesn't mean a biopsy was NOT done. It means that whether or not a biopsy was done, that biopsy was part of the cause of death.
All the examiner's report clarifies is that the cause of death was a complication that ensued during the laryngoscopy. Therefore, there was no homicide, no premeditation, no malice aforethought.
It has yet to be determined if there was criminally negligent manslaughter.
NY DAILY NEWS: Joan Rivers' death might be attributable to sedation drug: expert