(S (S (NP (BASENP (NNP McCowen)) (BASENP (PRP himself))) (VP (VBD had) (VP (ADVP (IN in) (NN fact)) (VP (ADVP (RB already)) (VP (VP (VP (VBN provided) (BASENP (DT a) (NN DNA) (NN sample))) (PP (TO to) (BASENP (DT the) (NN police)))) (ADVP (JJ prior) (PP (TO to) (NP (BASENP (DT the) (JJ mass) (NN testing)) (COMMA ,) (PP (IN in) (BASENP (NNP March) (NN 2004))))))))))) (PERIOD .))