As that Wikipedia article says, 20% of the population of North Korea died. This article suggests there were three times as many Northern civilian casualties as Southern ones:

http://en.wikipedia.org/wiki/Korean_War#Casualties

Obviously a lot of the statistics are distorted by exaggerations or simple indifference to the sufferings of the other side, but the basic pattern looks pretty uncontroversial.

It's just sick to pay so much attention to hired serial killers like the US Marines and totally ignore their vastly more numerous victims.