Hans Thomas Reiser (born December 19, 1963) is an
American computer programmer,
entrepreneur, and convicted
murderer. He is the creator of the
ReiserFS computer
file system, which is contained within the
Linux kernel, as well as its attempted successor,
Reiser4. In 2004, he founded
Namesys, a corporation meant to coordinate the development of both file systems. In April 2008, Reiser was convicted of the
first-degree murder of his wife, Nina Reiser, who disappeared in September 2006. He subsequently pleaded guilty to a reduced charge of
second-degree murder, as part of a settlement agreement that included disclosing the location of his wife's body, revealed to be in a shallow grave near the couple's home.