okay. show me a picture then. reporter: you showed him a picture of annie. yep. brittany? do you mean brittany? no, it s annie. reporter: detectives thought daniel was lying, and they were done playing around. what if i told you she s dead? i didn t do it. what the [ bleep ]? if you guys think i did this, i do want a lawyer. okay. because there s only we re done. the only thing that is shaking me. we re done, daniel, because i think you did it. well, if you think i did it, then you ve got the wrong guy, man. for real. good luck. find the right guy. reporter: derek was confident he had. they booked daniel for annie s murder. reporter: l.j., whoever he was, still hadn t turned up, but detective derek johnson still thought he d wrapped up his first homicide. all he needed was the lab to confirm that the blood found in daniel s home was annie s. but then the lab called and everything unraveled. coming up
weekend. dude, i have no idea who annie is. we ve already talked to a lot of other people that all verify she was there, danny. okay. show me a picture, then. reporter: you showed him a picture of annie. yep. brittany? is her name brittany? no, it s annie. reporter: detectives thought daniel was lying, and they were done playing around. what if i told you she s dead? i didn t do it. what the [ bleep ]? if you guys think i did this, i do want a lawyer. okay. because there s only we re done. the only thing that is shaking me. we re done daniel, because i think you did it. well, if you think i did it, then you ve got the wrong guy, man. for real. good luck. find the right guy. reporter: derek was confident he had. they booked daniel for annie s murder. l.j., whoever he was, still hadn t turned up but detective derek johnson still thought he wrapped up his first homicide. all he needed was the lab to confirm the blood he found in
okay. show me a picture, then. reporter: you showed him a picture of annie. yep. brittany? is her name brittany? no, it s annie. reporter: detectives thought daniel was lying, and they were done playing around. what if i told you she s dead? i didn t do it. what the [ bleep ]? if you guys think i did this, i do want a lawyer. okay. because there s only we re done. the only thing that is shaking me. we re done daniel, because i think you did it. well, if you think i did it, then you ve got the wrong guy, man. for real. good luck. find the right guy. reporter: derek was confident he had. they booked daniel for annie s murder. reporter: l.j., whoever he was, still hadn t turned up, but detective derek johnson still thought he d wrapped up his first homicide. all he needed was the lab to confirm that the blood found in daniel s home was annie s. but then the lab called and everything unraveled. coming up
she was there, danny. okay. show me a picture, then. reporter: you showed him a picture of annie. yep. brittany? is her name brittany? no, it s annie. reporter: detectives thought daniel was lying, and they were done playing around. what if i told you she s dead? i didn t do it. what the [ bleep ]? if you guys think i did this, i do want a lawyer. okay. we re done daniel, because i think you did it. reporter: derek was confident he had. they booked daniel for annie s murder. reporter: l.j., whoever he was, still hadn t turned up, but detective derek johnson still thought he d wrapped up his first homicide. all he needed was the lab to confirm that the blood found in daniel s home was annie s. but then the lab called and everything unraveled. coming up
annie. tell me about annie. tell me about annie. annie who? annie. who the [ bleep ] is annie? annie is a girl that was at your house for a party last weekend. dude, i have no idea who annie is. we ve already talked to a lot of other people that all verify she was there, danny. okay. show me a picture, then. reporter: you showed him a picture of annie. yep. brittany? is her name brittany? no, it s annie. reporter: detectives thought daniel was lying, and they were done playing around. what if i told you she s dead? i didn t do it. what the [ bleep ]? if you guys think i did this, i do want a lawyer. okay. because there s only we re done. the only thing that is shaking me. we re done daniel, because i think you did it. well, if you think i did it, then you ve got the wrong guy, man. for real. good luck. find the right guy. reporter: derek was confident he had. they booked daniel for annie s murder. did this name mean anything to you? r