scrambled to connect the dots between den hollander, the judge and marc angelucci. >> throughout the next few hours, we were able to piece together that the subject, roygelucci. they were part of what's described as the men's right movement which embraces all things masculine. >> california detectives had interviewed harry about his organization. the national coalition for men. the fbi was calling him now. he knew the shooter. roy den hollander was in your group at one point. >> yes. i threw him out. >> why? >> because of his character. he threatened to come out. >> according to harry, he wanted to join the federal lawsuit. the one arguing against a male only draft. >> i told him that's not going to happen. i'm surprised he didn't shoot me instead of mark. >> was he jealous of mark? >> absolutely. >> marquette a win in that case. the pieces of the puzzle were coming together quickly. the fbi determine the gun den hollander used to kill himself was the same as he used to killed daniel and marc angelucci. >> it's legally purchased in the 1980s. >> agent denahan tracked his movements minute by minute. his two week spree began on a train in new york city.