Not the Moses Sofer you were thinking of.

Here is a pair of unfortunate stories about a man named Moses Sopher.

Moses Sopher gunned down and was gunned down in 1900 himself by a man who had arrested him two years earlier. But this would not be the first life he took. It appears that in 1884 he and his father - also named Moses Sopher - got drunk, quarreled and the elder Sopher wound up stabbed to death.