addicted to pain pills but authorities said killed by black market counterfeits that he didn t know contained fentanyl. they made them look like they re made by a u.s. corporation. they re killing people across this country. girlfriends, mothers, sons. how can it be that he s gone tonight, we re following the trail of deadly fakes. they re just dropping. just hit the fan. overdose, overdose. all the way to the source in china. should be a high-end chemical company. no prescription needed. cheapest prices. who s making it? fentanyl is killing people. we know that. and who s dying from it? prince s death is a warning sign for people because he took something that ultimately killed him. good evening, everyone. i m amy robach. and i m david muir. this is 20/20. reporting tonight on his six-month investigation, here s bob woodruff. ready for takeoff. cleared for takeoff. reporter: on a cloudy april evening in 2016, a gleaming private jet takes
and they just chose to ignore it. addicted to pain pills but authorities said killed by black market counterfeits that contained fentanyl around they re killing people across this country. how can it be that he s gonee trail. all the way to the source in china. should be a high-end chemical company. no prescription needed. who s making it sf. fentanyl is killing people. we know that. and who s dying from it? prince s death is a warning sign for people because he took something that ultimately killed him. good evening, everyone. i m amy robach. and i m david muir. this is 20/20. reporting tonight on his six-month investigation, here s bob woodruff. cleared for takeoff. reporter: on a cloudy april evening in 2016, a gleaming private jet takes off from the atlanta airport carrying some very special cargo. on board, one of the most iconic musical superstars in the world, the purple one himself prince. purple rain reporter: this is video of prince i