Defendant-Appellant Keith Richter was convicted in 1998 of conspiracy and attempted murder in aid of racketeering and assault with a dangerous weapon in aid of racketeering, both in violation of 18 U.S.C. § 1959(a). He was sentenced to 192 months in prison, and he did not file a direct appeal. In 2006, he petitioned for a writ of
audita querela
in order, pursuant to
United States v. Booker,
Appellant claims that, because his sentence was based on a statutory regime that was held unconstitutional in Booker, his sentence is a nullity. And because he is time-barred from bringing this Booker claim under 28 U.S.C. §§ 2255, 2241, or 2244, he asserts that a writ of audita querela is both the appropriate and the only available avenue of relief.
We review
de novo
a district court’s grant or denial of a writ of
audita querela. See United States v. Holt,
We have previously indicated that a writ of
audita querela
“might be deemed available if [its] existence were necessary to avoid serious questions as to the constitutional validity of both § 2255 and § 2244.”
Triestman v. United States,
The instant case, however, does not present such a situation.
“Booker
does not apply retroactively to cases on collateral review....”
Guzman v. United States,
