Sign up for the MSNBC newsletter
You have been successfully added to our newsletter.
Let our news meet your inbox
Ronan Farrow Daily
Tucson News Now reporter Mauricio Marin, who witnessed this execution, recalls the event and discusses the controversy surrounding the two-drug cocktail used for lethal injections. Ronan Farrow explores the history of execution methods with Dr. Larry Kobilinsky, forensic scientist and Chair of the Science Department at John Jay College.Jul.24.2014