The hidden dangers of fentanyl

Saturday marks the second anniversary of the death of pop star Prince from an overdose of fentanyl. Investigators concluded this week that they are unable to file criminal charges, because they can't track down the person who supplied it. While the case is no longer active, it serves as a reminder of the harmful effects of the powerful drug. Prince overdosed on pills that he apparently believed were Vidodin, but were actually laced with a massive amount of fentanyl.