Transcript for Georgia Man Convicted of Flight Attendant's Murder
Jurors have reached a verdict in the bizarre murder trial in georgia. It was the case of a flight aden taunt killed by an alleged stalker in 1995. The suspect was only put on trial this year thanks to new dna evidence. And in a weird twist, he chose to defend himself in court. That turned out to be a bad move for him. Abc's steve osunsami has the story. Reporter: After a 17-year murder mystery and then a bizarre trial with waseem daker, an ex-con, acting as his own attorney and frightening victims on the witness stand -- we found him glgt as to count two. Reporter: Jurors moved quickly, closing this cold case in three, short hours. Finding daker guilty of strangling karmen smith in 1995, as an act of revenge against her housemate, loretta blatz, who was working with authorities to send him to jail for stalking her. A great day for karmen smith and her family. We're thrilled with the outcome of the case. Reporter: Prosecutors called him a monster and an obsessed maniac, who after killing smith, waited all day for her 5-year-old son to come walking home from school, walking through these sliding glass doors. Nicholas smith was stabbed 18 times and survived. He's now 22. And after jurors read the verdict, he and his family hugged and cried. She was a beautiful, caring outgoing mom, whose son, nick, was the number one thing in her life. She was taken from us way too soon by a stabbing monster. Reporter: When he testified, nicholas smith broke down, telling jurors the killer was wearing a mask. So, he couldn't see his face. I could kind of see when they ran past the window in the room. But they it was really dark. And they were wearing dark clothes. Reporter: Loretta blatz, the object of his affection, couldn't believe she had to answer questions. It's entirely inappropriate. It's really inappropriate that you stalked me and harassed me. And I have to sit here and answer your questions. That's hard for me. Reporter: He faces life in jail at sentencing, scheduled on monday. And all of his victims plan to attend. For "good morning america," steve osunsami, abc news, atlanta.
This transcript has been automatically generated and may not be 100% accurate.