A man who infected his partner with HIV, may have 300 other victims.
David Mangum is being held on bond, after he was charged with exposing his partner to HIV.
The victim says Mangum lied to him about his health, even though he was diagnosed in Dexter, Missouri, 10 years ago.
Mangum says he’s had unprotected sex with more than 300 other people.
But investigators can’t warn those people, because Mangum only knew them by just their first names.
He now faces life in prison.