(S (S (S (BASENP (NNP Korn)) (VP (VBD had) (VP (ADVP (RB apparently)) (VP (VP (VP (VP (VBN distributed) (BASENP (NNS fliers))) (PP (IN on) (BASENP (NN campus)))) (ADVP (RB before))) (CC and) (VP (VBN harassed) (BASENP (NNS professors))))))) (CC but) (S (PP (IN over) (BASENP (DT the) (JJ last) (JJ few) (NNS days))) (S (BASENP (DT the) (NNS threats)) (VP (VBD had) (VP (VBN become) (ADJP (RBR more) (JJ extreme))))))) (PERIOD .))