A woman convicted two weeks ago of running a Washington call-girl ring that catered to the capital's power elite was found dead ... and the authorities said she had apparently hanged herself. The body of the woman, Deborah Jeane Palfrey, 52, was found in a shed at her mother's home ... about 20 miles northwest of Tampa. The police said Ms. Palfrey had left a notebook containing at least two suicide notes and other messages to her family, but they did not give additional details. Ms. Palfrey, who had quickly become known as the D.C. Madam when the case against her began unfolding, apparently hanged herself from the shed's ceiling with nylon rope, the police said. Her mother, Blanche Palfrey, discovered the body. Blanche Palfrey had no sign that her daughter was suicidal. A federal jury in Washington found Ms. Palfrey guilty on April 15 of running a prostitution service that catered to powerful figures including Senator David Vitter, Republican of Louisiana. She was convicted of money laundering, using the mail for illegal purposes and racketeering. Ms. Palfrey had vowed that she would never go to prison. When she disclosed telephone records last year that revealed the identity of some of her clients, she told ABC: I'm sure as heck not going to be going to federal prison for one day, let alone four to eight years, because I'm shy about bringing in the deputy secretary of whatever. Not for a second. I'll bring every last one of them in if necessary." Despite that threat, Ms. Palfrey's trial concluded without the testimony of either Mr. Vitter or another particularly prominent client, Randall L. Tobias. One of the escort service's employees was Brandy Britton, a former professor at the University of Maryland, Baltimore County, who was arrested on prostitution charges in 2006. Ms. Britton committed suicide in January before she could go to trial.