(S (S (BASENP (PRP He)) (VP (VP (VP (VBD became) (ADJP (JJ attracted) (PP (TO to) (BASENP (JJ Islamic) (NN radicalism))))) (PP (IN in) (NP (BASENP (DT a) (NN matter)) (PP (IN of) (BASENP (NNS months)))))) (CC and) (VP (MD would) (VP (ADVP (RB later)) (VP (VP (VB cite) (NP (BASENP (DT a) (NN video)) (VP (VBG appearing) (S (VP (TO to) (VP (VB show) (S (BASENP (NNP US) (NNS soldiers)) (VP (VP (VBG raping) (BASENP (NNS women))) (PP (IN in) (BASENP (NNP Afghanistan))))))))))) (PP (IN as) (NP (BASENP (PRPD his) (NN motive)) (PP (IN for) (BASENP (DT the) (NN attack)))))))))) (PERIOD .))