Mangum's boyfriend Milton Walker appeared in a video posted on a blog saying he takes responsibility for the events that led to Mangum's arrest.
Police charged Mangum with attempted murder, arson, and child abuse after a domestic dispute with Milton on February 18.
According to an arrest warrant, the 33-year-old scratched, punched and threw objects at Milton Walker before setting his clothes on fire in a bathtub. Arresting officers said Mangum threatened to stab Walker while they were at her home. They went there after one of her children called 911.
Mangum has told reporters she didn't attack Walker and didn't burn his clothes. Now, his videotaped statement appears to back her up.
"The clothes that were burnt and the damage in the house and vehicle - at that time I wasn't on my medication. The breakup of my relationship aggravated my symptoms and I acted out on the voices that I was hearing," Milton says on camera.
Mangum spent three months behind bars before Hammond and Hammond bail bond service posted her $100,000 bail in May free of charge. Mangum's bail originally was set at $1 million before being lowered.
Mangum is the Durham woman best known for accusing members of the Duke Lacrosse team of rape in 2006. The players were later exonerated and the charges against them dropped.
Mangum has said she believes her involvement in the Duke Lacrosse case influenced what happened to her in February.
The attempted murder and child abuse charges against Mangum were eventually dropped. She's still charged with arson and child neglect.
So far, Durham authorities have not said if the video will have any bearing on the pending case.