Obama will probably do nothing.
Via LA Times:
American Otto Warmbier weeks ago had tearfully begged his North Korean captors for forgiveness as he confessed to trying to remove a political banner from a hotel in Pyongyang, the capital.
That request was denied Wednesday as North Korea sentenced the 21-year-old University of Virginia economics student to 15 years of hard labor for “acts against the state,” North Korean state media reported.
Warmbier, a Cincinnati native, was arrested in early January as he prepared to board a flight out of North Korea after traveling to the country as a tourist. He was later accused of trying to remove the banner.