Student's Ex Testifies: 'She Tried to Attack Me With the Knife'

UC-Riverside student Barbara Wu is accused of engaging in murder-for-hire.
1:57 | 08/05/13

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Transcript for Student's Ex Testifies: 'She Tried to Attack Me With the Knife'
it. This bizarre murder-for-hire plot, a 22-year-old student back in court today accused of asking two of her former boyfriends to take out two of her other exes. Abc's clayton sandell has the story. Reporter: This morning, barbara wu will be back in court as the district attorney lays out a sordid case against the 22-year-old college student who's majoring in political science but now stands accused of engaging in murder for hire. Wu was an honor student in high school. A badminton player accepted to the university of california riverside. But prosecutors say after a boyfriend broke up with her by e-mail she engineered a revenge plot to kill him. His identity hidden, he testified against her last week. Tried to attack me with a knife. Reporter: They broke up and wu started dating dennis lin. That's when she allegedly asked had him to help retall yalt against ex-boyfriend number one allegedly sending threatening message and worse. She asked me to kidnap him and then to somehow kill him and then dispose of the body. Reporter: Lin secretly went to police. They asked had him to wear a wire. Thanks to that recording, wu was busted charged with solicitation to commit murder and stalking. She has pleaded not guilty. Then in yet another twist, when news of wu's arrest broke a third man came forward. He told police when he dated wu several years ago, she allegedly asked him to kill another ex-boyfriend. She's been charged in that case too. Pleading not guilty. It's a preposterous tale. Reporter: Wu's attorney says dennis fabricated it to remove his own academic trouble at the university. We're looking forward to the day we can have a jury listen to this evidence and have her vindicated. Reporter: If wu's case goes to trial and she's convicted she could spend 13 years in prison. For "good morning america," clayton sandell, abc news, denver.

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