According to the Los Angeles County Medical Examiner, Ryan Kobayashi’s cause of death was “multiple blunt force traumatic injuries.”

Hannah Kobayashi’s disappearance remains a mystery as her family and friends desperately search for answers piecing together what happened to her and what may have led to her radio silence.

Hannah Kobayashi disappeared on Nov. 8 after she failed to make a connecting flight from Los Angeles to New York City. Here's everything we know so far about what happened to Hannah Kobayashi.