Hemei Sakaguchi was a 19-year-old Japanese college student studying in Germany when he was hit by a bus on his way from school and died a painful death after the operation that was carried on him 15 hours later had failed. He did not have a happy life by any stretch of the imagination as he was a victim of severe bullying.
This actually came as a shock to him as he was usually the one doing the bullying back in high school days, while he had still been in Japan only a year before his death. After moving to Germany, the language barrier had prevented him from moving with his usual clique and thus he slowly became isolated and targeted.