(S (S (S (NP (BASENP (NNS Noises)) (VP (VBG resembling) (BASENP (NNS bangs)))) (VP (VBD were) (VP (VBN heard) (PP (IN at) (NP (BASENP (RB approximately) (NN 1320) (NN BST)) (PRN (LRB -LRB-) (BASENP (NN 1220) (NN UTC)) (RRB -RRB-))))))) (COLON ;) (S (S (BASENP (DT the) (JJ male) (NN suspect)) (VP (VBD was) (VP (VP (VBN placed) (PP (IN under) (BASENP (NN arrest)))) (PP (IN at) (NP (BASENP (RB about) (NN 1345) (NN BST)) (PRN (LRB -LRB-) (BASENP (NN 1245) (NN UTC)) (RRB -RRB-))))))) (COMMA ,) (NP (BASENP (QP (RB just) (RB over) (NN three)) (NNS hours)) (SBAR (IN after) (S (BASENP (DT the) (NN incident)) (VP (VBD began))))))) (PERIOD .))