DETECTIVE COMICS #785
Batman�and Green Lantern work together to track down possible leads on the Made of Wood killing, including the victim's link to the Four Corners Clovers, an Irish gang. They discover that the leader of the gang is missing, and has been for several days; he is soon found dead in an alleyway, with the same message, 'Made of Wood', carved in his chest. James Gordon, the former commissioner, is also determined to crack the case, by working on the old murders from 1948, surmising that they stopped because the killer either died or was incarcerated. He starts tracking down those who knew people who match this profile, and is attacked by one of them, one Francis Sullivan, and knocked unconscious.