My guess, and it’s just a guess, is that she was alone here in the US, having come here from South Korea with an Army soldier. They had a quarrel and he killed her, then he wrapped her up and drove her body 70 miles away and dumped her in a rural town dumpster. No one ever knew what happened to her and, if asked, he would just say she went back to Korea.......................
I was also thinking something along those lines. Sad to consider, but entirely plausible.