Petitioner was convicted in a Federal District Court on two different counts of assaulting two federal officers with a deadly weapon in violation of 18 U.S.C
. § 111.  The first count charged that petitioner had assaulted a United States Marshal with a deadly weapon, a knife, on May 5, 1975, and the second count charged that petitioner had assaulted a United States Deputy Marshal with a deadly weapon, a knife, on May 6, 1975.  The District Court sentenced