since dahmer resorts to standard slasher flick thrills when it should be most in the mind of the killer , it misses a major opportunity to be truly revelatory about his psyche . 
(ROOT (S (SBAR (IN since) (S (NP (NNP dahmer)) (VP (VBZ resorts) (PP (IN to) (NP (JJ standard) (NML (NN slasher) (NN flick)) (NNS thrills))) (SBAR (WHADVP (WRB when)) (S (NP (PRP it)) (VP (MD should) (VP (VB be) (PP (ADVP (RBS most)) (IN in) (NP (NP (DT the) (NN mind)) (PP (IN of) (NP (DT the) (NN killer)))))))))))) (, ,) (NP (PRP it)) (VP (VBZ misses) (NP (DT a) (JJ major) (NN opportunity) (S (VP (TO to) (VP (VB be) (ADJP (RB truly) (JJ revelatory) (PP (IN about) (NP (PRP$ his) (NN psyche))))))))) (. .)))
(ROOT (S (SBAR (IN ) (S (NP (NNP )) (VP (VBZ ) (PP (IN ) (NP (JJ ) (NML (NN ) (NN )) (NNS ))) (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (MD ) (VP (VB ) (PP (ADVP (RBS )) (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN )))))))))))) (, ) (NP (PRP )) (VP (VBZ ) (NP (DT ) (JJ ) (NN ) (S (VP (TO ) (VP (VB ) (ADJP (RB ) (JJ ) (PP (IN ) (NP (PRP$ ) (NN ))))))))) (. )))