the aisle are turning up the heat on north korea after the death of otto warmbier. >> he died yesterday less than a week after he was returned to the u.s. suffering extensive brain damage after more than a year of captivity in north korea. abc's janai norman has the latest for us from washington. good morning, janai. >> reporter: kendis and diane, good morning to both of you. at least one top republican is calling what happened to otto warmbier murder. senator john mccain saying the u.s., quote, cannot and should not tolerate the murder of its citizens by hostile powers. he was the college junior turned north korean prisoner, otto warmbier was enrolled at the university of virginia when he traveled to the communist country captured on video stealing a propaganda poster. state media claiming he was working to defame north korea as a pawn for the u.s. government. he was sentenced to 15 years of hard labor. >> please save my life. please think of my framily. >> reporter: that...