Lost in the glare of North Korea’s missile launches, rhetorical battles with Washington and charm offensive at the Winter Olympics, a court is hearing evidence in the stunning assassination of Kim Jong Un’s estranged half brother. The two young Southeast Asian women on trial could be sent to the gallows for a crime they almost certainly had a part in – possibly without knowing it. But just as certainly, the slaying of Kim Jong Nam one year ago Tuesday required a bigger cast of characters. People who could plan such a crime, procure a deadly and exotic poison and ensure no one was harmed other than the target in a crowded airport terminal in Malaysia. And those suspected masterminds are all long gone.