29 April 2015 :

The South Korean National Intelligence Service (NIS) told the South Korean National Assembly that Kim Jong Un executed 15 officials who spoke out against him or his orders.
“Kim Jong Un made an example out of those 15 executed, for speaking against him … [the vice minister] of the Ministry of Forestry was the first to be executed for speaking against Kim Jong Un’s plan on forest tree planting,” Shin Kyung-min, a lawmaker for South Korea’s New Politics for Allied Democracy (NPAD) party told media after the NIS’ report.
“In February the National Strategy Committee’s Deputy Chief was executed for speaking against the building of the Science and Technology Center near the Taedong river,” he continued.
“[The] Enhasu Orchestra’s 4 directors were shot down by gun squad. That is already 15 in this year”.