蜜芽传媒

Prince's death certificate has attributed his demise to an accidental overdose of prescription drugs - specifically, Fentanyl. It's one of several man-made opioids prescribed so widely in the U.S. that they account for the same number of deaths every year as from people killed in car accidents. Evan Horowitz of the Boston Globe, has been looking into the history of Fentanyl and related drugs.

(Photo: Prince in concert in 2011. Credit: Jonathan Fenton-Fischer)