Kim Jong Un was not responsible for the horrific injuries sustained by American student Otto Warmbier, who died shortly after being released from 17 months of detention in North Korea, President Donald Trump said Thursday. "Some really bad things happened to Otto - some really, really bad things. But he tells me that he didn't know about it, and I will take him at his word," Trump said, referring to the North Korean dictator. The president added that Kim told him that he "felt very badly about it."