WWE legend Chyna died from an accidental Ambien and Valium overdose claims her manager who also reveals her brain will be examined for same degenerative brain disease that strikes former NFL players
http://www.dailymail.co.uk/news/article-3561569/Brain-dead-WWE-wrestling-legend-Chyna-donated-medical-research-examined-signs-condition-caused-repeated-blows-head.html