A woman linked to the deaths of seven middle-aged men was charged with murder in one of the roadside slayings, and prosecutors in four Florida counties prepared additional murder charges.

Aileen Carol Wuornos, 34, was charged Wednesday with murder after being arrested on a concealed weapon charge last week in a bar near Daytona Beach. Investigators on Thursday described her as a sometime prostitute and convicted felon. Police said property belonging to the seven victims was found in a storage unit rented by Wuornos.She was silent at her first court appearance Thursday and was ordered held without bond in the Volusia County Jail. No arraignement date was set.

Marion County sheriff's Capt. Steve Binegar said the arrest should help solve "quite a few" cases in several states. He declined to identify those states.

The victims' bodies were usually found along rural roadways, some stripped nude, in different areas of the state. They were robbed and their cars found elsewhere.