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David Mangum, Mo. man charged with spreading HIV, claims he had 300 partners

This booking photo provided by the Dexter, Mo., Police Department shows David Mangum. AP Photo/Dexter Police Department

This booking photo provided by the Dexter, Mo., Police Department shows David Mangum.
AP Photo/Dexter Police Department
(CBS/AP) DEXTER, Mo. - A Missouri man who told authorities he had unprotected sexual contact with as many 300 people after being diagnosed with HIV pleaded not guilty on Thursday to infecting another man with the virus, and prosecutors said more charges are expected.

David Mangum, 36, entered the plea after being charged with recklessly infecting another with HIV, which in Missouri - where penalties for such crimes are among the nation's harshest - carries a maximum sentence of life in prison.

According to court documents, Mangum told detectives in Dexter, a small town in southeast Missouri, that he had unprotected sex with as many as 300 partners since being diagnosed a decade ago with HIV, the virus that causes AIDS. Up to 60 of those contacts allegedly occurred after he moved to Missouri two years ago from Dallas, where he has convictions for prostitution, indecent exposure and public lewdness.

Mangum told investigators that many of his trysts stemmed from Craigslist ads, and that he would meet up with men at parks, truck stops and other remote locations. Police believe many of his partners were truckers or others passing through the region. Dexter police detective Cory Mills said investigators are concerned about finding potential victims because Mangum had little information about many of the men.

"First names with no phone numbers or addresses - that's going to be a challenge," Mills said.

Since the story became public, more potential victims have come forward, Stoddard County prosecutor Russell Oliver said. Oliver wouldn't say how many people, but he said more charges were expected.

Local health clinics are reporting a recent surge in people seeking HIV tests. In Stoddard County, where one or two people generally get tested each week, 15 people came in for testing in the past week, said Debbie Pleimling, director of the county's Health Department. Neighboring counties are also reporting a spike.

"There has to be concern," she said. "If he's randomly meeting people for sex, we have no clue where to turn."

Local authorities said they were also working with Dallas police.

It's unclear why Mangum moved to Dexter, a conservative town of about 8,000 residents. He worked at a local grocery store, according to Mills, but little else is known about him.

This summer, Mangum allegedly admitted to a roommate with whom he'd been intimate that he had been HIV-positive since 2003. The man went in for testing and learned he was HIV-positive, then went to police.

Mills said Mangum seemed unapologetic and told police he wasn't truthful for "fear of rejection."

Magnum is jailed on a $250,000 cash-only bond. A preliminary hearing is set for Sept. 26.

Missouri is among 37 states that make it a crime to knowingly transmit HIV to others. Its penalties are among the toughest: a maximum sentence of life in prison if the victim was infected with HIV, and up to 15 years in prison if the victim was exposed.

  • Iris Carreras

    Iris Carreras covers crime for CBSNews.com

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