The appeal of his conviction was eventually rejected and he was forced to serve the remainder of that year in prison .
After Epton left PL , he was involved in new attempts to unite revolutionary Marxists in the U.S. in the early 1970s .
The appeal of Epton 's conviction was eventually rejected and he was forced to serve the remainder of that year in prison .
After Epton left PL , he was involved in new attempts to unite revolutionary Marxists in the U.S. in the early 1970s .