Startling new information has come out surrounding Joan Rivers death.

A staffer at Manhattan’s Yorkville Endoscopy clinic said the doctor who performed a biopsy on Rivers’ vocal cords, right before her death, took a selfie while Rivers was under anesthesia. 

It's believed that Rivers went into cardiac arrest during the unauthorized biopsy because of a lack of oxygen flow to her lungs. After that Rivers was taken to Mt. Sinai hospital where she passed away a week later. 

The unidentified doctor is believed to be Rivers' ear-nose-throat doctor who was not certified to perform that procedure.

An investigation of the Yorkville clinic is still ongoing.

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[via CNN]