Chinese students are so happy to be able to come to the US and study, they have no idea where they are going or nay of the dangers in America. The Americans they come into contact with in China, are friendly and for the most part polite and honest. They form their images of America from these US citizens living in China.
So when they arrive they have no idea of the criminal element here.
This is the only child for his parents. All their hopes and dreams were in him. They expected him to return to China. marry and give them a grandchild. Now everything is gone. They died when he died.
It is heartbreaking to read this. May the murderer(s) rot in Hell.