Complex sentence: Batman questions Zsasz, who says he is on parole, if he knows anything about the recent murder of the young man dressed like Superman and he responds that many criminals in Gotham City don't even know how to feel about the "xeno" matter.
Split into simpler sentences: Batman questions Zsasz and asks if he knows anything about the recent murder of the young man dressed like Superman. He responds with reference to his parole and that many criminals in Gotham City don't even know how to feel about the "xeno" matter.