how to deal with north korean nut-job kim jong un

with a fat-seeking cruise missle, of course! 

Unlike North Korea, our cruise missles have an impressive record of hitting and destroying the target. 

http://www.cnn.com/2017/05/14/asia/north-korea-missile-test-russia-japan/

But wait! Putin has the answer:
Putin says world needs to talk to North Korea not threaten it | Reuters
one "flagrant menace" to another