I think that the last verse, which people seem to think means that Sufjan is a murderer, could relate to the lines "The neighbors they adored him. For his humor and his conversation." As a youngster Gacy was charming and people don't understand how such a nice boy could kill 33 people. Then the line at the end "and in my best behaviour I am really just like him," what's important are the words "best behaviour" - Sufjan isn't saying he's a bad person, he's saying that he, like all other men (and women) have the capacity to kill. He already has his secrets. Who's to say he doesn't have the ability to hide his own bodies?
I think that the last verse, which people seem to think means that Sufjan is a murderer, could relate to the lines "The neighbors they adored him. For his humor and his conversation." As a youngster Gacy was charming and people don't understand how such a nice boy could kill 33 people. Then the line at the end "and in my best behaviour I am really just like him," what's important are the words "best behaviour" - Sufjan isn't saying he's a bad person, he's saying that he, like all other men (and women) have the capacity to kill. He already has his secrets. Who's to say he doesn't have the ability to hide his own bodies?