the significance of that was they didn't know we knew about brett schrauben. ing to know something's up. >> reporter: sure enough, as soon as tom heard brett got an anonymous letter, he called his mother, sandra. >> whoever was sending out all that crap sent one to brett too. >> give me a break. >> really. >> you're kidding. >> no. why would i kid about something like that? >> sent one to brett? >> yeah. >> why would they send one to him? how could they even -- >> i have no clue. >> reporter: next, dove started poking brett's friends in california. who of course called brett. >> leave your name and number and i'll get back to you, thank you. >> hey, dude, it's me. you need to [ bleep ] call me asap. this is no [ bleep ] joke. some guy from the sheriff in orange county sheriff's department homicide division was calling me, asking about you. >> reporter: brett in turn called tom. >> hello? >> hello, tom? >> yeah, hey, what's up? >> i got a call from scott. the orange county homicide division -- >> uh-huh. >> called scott, they want to talk to him about me. >> abo