. >> sam herr and julie kibuishi. daniel wozniak murdered them both, and, ladies and gentlemen, we are going to get to a penalty phase. on trial for the double murder of julie kibuishi and sam herr. if found guilty, a jury could sentence him to die. not good enough for this prosecutor. >> the death penalty is not enough for daniel wozniak on this. for justice to be done in this case, personally, i'd prefer proof of hell. i'd prefer proof that there's... that there's something that is awaiting him after he dies. there are searches on google. >> reporter: matt murphy presented the evidence, painting a chilling portrait of a killer with no conscience. ways to kill people," and sandals resorts. this is a guy who's planning to murder two human beings so he can have an awesome honeymoon down in... in mexico. >> reporter: then, there was the physical evidence: the gun he stole from his own father to kill his victims and that backpack jammed with evidence. >> now, from a forensic, cold, sterile analysis of evidence, it doesn'

. >> sam herr and julie kibuishi. daniel wozniak murdered them both, and, ladies and gentlemen, we are going to get to a penalty on trial for the double murder of julie kibuishi and sam herr. if found guilty, a jury could sentence him to die. not good enough for this prosecutor. >> the death penalty is not enough for daniel wozniak on this. for justice to be done in this case, personally, i'd prefer proof of hell. i'd prefer proof that there's... that there's something that is awaiting him after he dies. there are searches on google. >> reporter: matt murphy presented the evidence, painting a chilling portrait of a killer n >> "how to hide a body," "quick ways to kill people," and sandals resorts. this is a guy who's planning to murder two human beings so he can have an awesome honeymoon down in... in mexico. >> reporter: then, there was the physical evidence: the gun he stole from his own father to kill his victims and that backpack jammed with evidence. >> now, from a forensic, cold, sterile analysis of evidence, it

. >> sam herr and julie kibuishi. daniel wozniak murdered them both, and, ladies and gentlemen, we are going to get to a penalty on trial for the double murder of julie kibuishi and sam herr. if found guilty, a jury could sentence him to die. not good enough for this prosecutor. >> the death penalty is not enough for daniel wozniak on this. for justice to be done in this case, personally, i'd prefer proof of hell. i'd prefer proof that there's... that there's something that is awaiting him after he dies. there are searches on google. >> reporter: matt murphy presented the evidence, painting a chilling portrait of a killer wio >> "how to hide a body," "quick ways to kill people," and sandals resorts. this is a guy who's planning to murder two human beings so he can have an awesome honeymoon down in... in mexico. >> reporter: then, there was the physical evidence: the gun he stole from his own father to kill his victims and that backpack jammed with evidence. >> now, from a forensic, cold, sterile analysis of evidence,

. >> sam herr and julie kibuishi. daniel wozniak murdered them both, and, ladies and gentlemen, we are going to get to a penalty phase. on trial for the double murder of julie kibuishi and sam herr. if found guilty, a jury could sentence him to die. not good enough for this prosecutor. >> the death penalty is not enough for daniel wozniak on this. for justice to be done in this case, personally, i'd prefer proof of hell. i'd prefer proof that there's... that there's something that is awaiting him after he dies. there are searches on google. >> reporter: matt murphy presented the evidence, painting a chilling portrait of a killer with no conscience. ways to kill people," and sandals resorts. this is a guy who's planning to murder two human beings so he can have an awesome honeymoon down in... in mexico. >> reporter: then, there was the physical evidence: the gun he stole from his own father to kill his victims and that backpack jammed with evidence. >> now, from a forensic, cold, sterile analysis of evidence, it doesn'

. >> sam herr and julie kibuishi.el wozniak murdered them both, and, ladies and gentlemen, we are going to get to a penalty phase. >> reporter: daniel wozniak went on trial for the double murder of julie kibuishi and sam herr. if found guilty, a jury could sentence him to die. not good enough for this prosecutor. >> the death penalty is not enough for daniel wozniak on this. for justice to be done in this case, personally, i'd prefer proof of hell. i'd prefer proof that there's... that there's something that is awaiting him after he dies. there are searches on google. >> reporter: matt murphy presented the evidence, painting a chilling portrait of a killer with no conscience. >> "how to hide a body," "quick ways to kill people," and sandals resorts. this is a guy who's planning to murder two human beings so he can have an awesome honeymoon down in... in mexico. >> reporter: then, there was the physical evidence: the gun he stole from his own father to kill his victims and that backpack jammed with evidence. >> now, fr

wednesday on nbc. >>> reporter: julie kibuishi, her valentine girl, was pursuing fashion design whileving at home. it was a mother's dream. >> i was planning a lot of stuff to do with her, so we're going to be the buddies to go shopping or -- that's what i told julie. we're planning to do that. that was right before it happened. it's so hard, you know? she was 23. >> reporter: 23 years young and her life taken from her in the most senseless way. >> she loved to kind of design things. so, she really wanted to be a stylist. >> reporter: now that would never happen. >> reporter: police were looking hard for sam herr. detective ed everett. >> he's on the run and he's in the wind and now it's our job to find him and see where he's at and ask him, why? >> reporter: okay. not a whole lot of question of who the suspect was at this point. >> no. we were pretty confident he was our guy. >> reporter: steve herr was also eager to find sam but for an entirely different reason. to clear his son's name. so steve began his own investigation. >> reporter: why did you feel the need to do your own polic

sexually assaulted. >> reporter: police quickly identified the victim, sam's tutor and friend, julie kibuishi. before long, two detectives paid a visit to julie's mom. >> this one detective told me, okay, you're mrs. kibuishi. please you need to sit down. can you sit down? like, okay, your daughter was found in this -- sam herr's apartment and then i think he said your daughter's body was found or something like that. and then i just -- i think i was screaming like, no, no, that's not my daughter. no. it's not my daughter. >> reporter: julie had been shot twice in the head. and someone had written on her sweatshirt the words "all yours "h" "f" you. she was still wearing the tiara her brother had given her the night before. >> i was still in disbelief of it was not my daughter. it just can't be my daughter. i wanted to see and they didn't allow me to see. they said i wasn't allowed to go. >> reporter: june could barely absorb what she was hearing. julie was dead. and the only logical suspect was her college friend, sam. >> she told me that he's taking the same class with her and that he told m

. >> sam herr and julie kibuishi. daniel wozniak murdered them both, and, ladies and gentlemen, we are going to get to a penalty phase. on trial for the double murder of julie kibuishi and sam herr. if found guilty, a jury could sentence him to die. not good enough for this prosecutor. >> the death penalty is not enough for daniel wozniak on this. for justice to be done in this case, personally, i'd prefer proof of hell. i'd prefer proof that there's... that there's something that is awaiting him after he dies. there are searches on google. >> reporter: matt murphy presented the evidence, painting a chilling portrait of a killer with no conscience. ways to kill people," and sandals resorts. this is a guy who's planning to murder two human beings so he can have an awesome honeymoon down in... in mexico. >> reporter: then, there was the physical evidence: the gun he stole from his own father to kill his victims and that backpack jammed with evidence. >> now, from a forensic, cold, sterile analysis of evidence, it doesn'

>> yes. >> reporter: and julie kibuishi? dan said he killed her to cover his tracks and to frame sam. >> to make it look like he was on the run and he did it. >> he was the one that did it. >> right, and that if he was disappeared completely, you'd never find him. and it would all go away. >> reporter: but none of this steve herr, sam's dad, remembers when police showed up at his door. >> they came in and they said sam's been found. he was murdered. and for whatever reason, i said, i don't know what made me say this, i said, at least he wasn't dismembered. okay? the next morning, i get a call from the costa mesa police. he says, "steve, before you find out, we just want to let you know sam was dismembered," and that -- that's when i just lost it. >> reporter: the very next day, sam herr would have turned 27 years old. sam's friend, ruben. >> you know, the -- the night that it was his birthday, his father's praying to find his head. sorry. so it's very upsetting, you know. >> reporter: when police told you that they thought t