With every stroke of his brush, Irish painter Brian McGuire has made it his artistic and human mission to tell the stories of victims in Juárez, Mexico, which is considered to be "the murder capital of the world." It's where more than 5,000 people have been butchered by drug cartels over the past six years, including the more recent travesty, the 2014 Iguala mass kidnapping of 43 male students who are believed to be dead.