threatening statements or inferred that she ever did anything to cari, because that's like gold to me if we had something like that. >> okay. >> reporter: and what do you know, within days, liz began forwarding them emails. from amy, she said. although the misspellings looked awfully familiar. "i shot you liz to make sue dave stayed away from you." "i made a couple of those fake emails and numbers you and dave thought were cari to get rid of you liz but ddnt wrk to well" >> when they first started coming in they were pretty vague. >> reporter: so detective doty spoke to liz again. they needed more, he told her. >> so you guys want me to try and email her back? >> and that's -- i'm leaving that in your court, liz. i mean, if that's something you would feel okay doing, uh, that'd be really helpful for us. >> reporter: liz said she'd try. >> cari's family -- some closure would be nice, probably. >> yeah, that -- that -- true. get, uh, her family some closure. >> reporter: so liz said she sent this email to amy. "so if you really shot me, then what kind of gun was it? so did you ever get to meet up with dave's ex cari?" >> reporter: and according to liz, amy responded. "the gun was daves that i used. don't worry you didn't get it as bad as crazy cari."