2007年4月,美国弗吉尼亚理工大学发生恶性校园枪击案,32名无辜者惨遭杀害。警察赶来时,韩裔枪手赵承熙朝着自己的头部扣动了扳机。枪击案震惊了世界,人们对凶手的暴行表示了极大的愤慨。后来,人们知道,23岁的赵承熙是一个有严重心理疾病的大学生。他8岁随父母移民美国,自小性格孤僻,很少与人沟通,连父母都很少同他讲话。在封闭和孤独的生活中,他感受不到人间的温暖。 In April 2007, a vicious campus shootout took place at the Virginia Tech University in the United States, killing 32 innocent people. When the police arrived, Korean gunman Cho Seung Hee pulled the trigger on his head. The shooting shocked the world, and people expressed their great indignation over the atrocities committed by the murderers. Later, people knew that 23-year-old Zhao Chengxi was a college student with a serious mental illness. At the age of 8, he immigrated to the United States with his parents. Since childhood, he was very isolated and rarely communicated with others. Even his parents rarely spoke to him. In a closed and lonely life, he can not feel the warmth of the world.