The woman who falsely claimed she was raped by Duke lacrosse players five years ago has been accused of stabbing her boyfriend in the chest. Durham police say 32-year-old Crystal Mangum was arrested early Sunday morning several hours after the stabbing that seriously injured her 46-year-old boyfriend, according the News & Observer. Investigators said an argument led to the stabbing. Mangum is charged with assault with a deadly weapon with intent to kill. She was convicted in December of several misdemeanor charges, including child abuse, in a fire that nearly destroyed her home. In that case, the News & Observer reports, police said Magnum slashed her boyfriend's tires, smashed his windshield with a vacuum cleaner and set fire to clothes in a bathtub while her three children were in her apartment. A felony arson charge was dropped.