Hans Reiser, an open source Linux engineer, traumatized his 5-year-old son with violent video games and horror movies, prosecutor Paul Hora told jurors in the opening of Reiser's murder trial. Reiser is accused of murdering his Russian-born wife Nina Reiser, who disappeared in September 2006.

Reiser created the Linux file system called ReiserFS, a part of the core Linux kernel and also wrote several articles for Linux Journal.

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