Stalker Murder Trial: Judge Reportedly Fed Up With Defendant

A man convicted of stalking a woman is now accused of killing her roommate in 1995.
3:00 | 09/25/12

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Transcript for Stalker Murder Trial: Judge Reportedly Fed Up With Defendant
get to the bizarre murder trial in georgia, wre a man who did jail time for stalking a woman is on trial for killing her roommate in 1995. Steve osunsami has the latest from atlanta. There's are numerous occasions during the trial that your voracity has been in strong question by me. Strong. Reporter: The judge in this georgia courtroom, close to losing her cool. And clearly fed up with waseem daker, the man on trial for a murder and acting as his own lawyer. You don't try cases by ambush. Reporter: This would-be attorney is a convicted stalker, now accused of strangling flight attendant karen smith, as an act of revenge against her roommate. Loretta black is still frightened all these years later. I would have clearly done things differently. But I can't. I can't. Reporter: In court monday, prosecutors say when they finally arrested daker in 2009, they found rope, handcuffs, and how-to manuals with illustrations on how to get away without murder and kill without joy. If my advice in this book are followed, no one will ever know. Reporter: They say e-mails proved daker obtained the materials, for smith, and waiting all day for her 5-year-old son to come home from school and walk through the sliding, glass doors. Nicholas smith was stabbed 22 times. I see when they ran past the room in my window. It was dark. And they were close. Reporter: Daker and prosecutors are fighting over new dna tests of hairs from the scene, that police say cracked the case and led to his arrest. Which is more expensive? Doing a dna test or sending a man to jail for life? Reporter: He could soon start arguing his innocence, this afternoon. And he could testify while acting as his own lawyer. Let's get more of this from dan abrams. You see it rarely.

This transcript has been automatically generated and may not be 100% accurate.

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