of the caller nor the killer. he was still afraid to give us any more information. so i'm doing everything i can to gain his trust, just keep talking to him. josh mankiewicz: the informant agreed to call again the next day. and this time, he was more forthcoming. he started telling me that i needed to look for a girlfriend of the shooter that was from las vegas. he kept saying the shooter is where i am. josh mankiewicz: the caller told beech that he was a retired air force serviceman and played in a band with the shooter. thshooter, he said, was his best friend. i asked him, again, to call the next day. and he said, i have to work, but i can call on thursday. and i said, ok, well, i'll be here waiting. and he almost whispered, the shooter is jim huden. josh mankiewicz: jim huden, in the age of google, that was all the break mark plumberg needed. by the end of the day, the detectives knew that jim huden lived in south florida and played in a band.