(S (S (QT (DQL ``) (QTC (S (BASENP (PRP He)) (VP (VP (VBD turned) (PRT (RP out))) (S (VP (TO to) (VP (VB be) (NP (BASENP (DT a) (JJ 20-year-old) (NN native)) (PP (IN from) (NP (BASENP (NN one)) (PP (IN of) (BASENP (DT the) (NNP North) (NNP Caucasus) (NNS republics))))))))))) (COMMA ,)) (DQR '')) (CC and) (S (QT (DQL ``) (QTC (S (PP (IN Despite) (NP (BASENP (DT the) (NN investigation)) (VP (VBG having) (VP (VBN established) (NP (BASENP (DT the) (NN name)) (PP (IN of) (BASENP (DT the) (NN terrorist)))))))) (COMMA ,) (S (BASENP (PRP we)) (VP (VP (MD will) (RB not)) (VP (VP (VB name) (BASENP (PRP him))) (BASENP (NN today)))))) (COMMA ,)) (DQR '')) (SBAR (IN because) (S (BASENP (PRP it)) (VP (MD may) (VP (VB hamper) (NP (BASENP (JJ ongoing) (NNS efforts)) (SBAR (S (VP (TO to) (VP (VB detain) (NP (BASENP (NNS people)) (VP (VBN suspected) (PP (IN of) (BASENP (NN collaborating)))))))))))))))) (PERIOD .))