Sentence under the Armed Career Criminal Act is affirmed over defendant's arguments that: 1) the district court improperly relied upon a state court transcript in establishing one of the underlying convictions needed to activate the ACCA; 2) there was insufficient evidence to support a finding that defendant had been convicted of such a predicate offense; and 3) the finding of the predicate offense was made in violation of his constitutional rights because the relevant facts were neither admitted by him nor proven to a jury beyond a reasonable doubt.