Hans Reiser is a computer programmer, system engineer and the founder of Namesys, a software company based in California. He is best known for the development and creation of the ReiserFS and Reiser4 file systems, which are advanced journaling file systems that are used in several versions of Linux. However, he is also known for a notorious criminal case in which he was the defendant. In October 2006, Reiser's wife, Nina Reiser, a Russian national who had been living in the United States, disappeared. Subsequent investigations led the police to suspect that Hans Reiser was involved in his wife's disappearance. In 2008, he was found guilty of first-degree murder after a six-month trial, despite the fact that Nina's body had not been found at that point. In an attempt to reduce his sentence, Reiser later led police to the hidden remains of his wife in the Oakland hills. He revealed that he had strangled Nina Reiser during an argument while their children played one floor below. Thanks to his cooperation, his sentence was reduced from 25 years to life to 15 years to life. Though the criminal case has certainly overshadowed his technical contributions, Reiser's work on the file system has left an impact on the Linux system. However, his prison sentence has led to the ceasing of progress and development on the Reiser file system, eventually leading to its deprecation in many distributions of Linux since other alternatives were more actively maintained. To sum up, while Hans Reiser did contribute to the technology realm, his personal life, specifically his criminal case, has largely overshadowed that legacy.