A Kentucky census worker found naked, bound with duct tape and hanging from a tree with "fed" scrawled on his chest killed himself but staged his death to make it look like a homicide, authorities said Tuesday.

Enlarge File photo by Times Tribune via AP Bill Sparkman speaks to 7th grade Aviator students about sound waves in a science class. in this undated photo. FRANKFORT, Ky. (AP)  A Kentucky census worker found naked, bound with duct tape and hanging from a tree with "fed" scrawled on his chest killed himself but staged his death to make it look like a homicide, authorities said Tuesday. Bill Sparkman, 51, was found strangled Sept. 12 with a rope around his neck near a cemetery in a heavily wooded area of the Daniel Boone National Forest in southeastern Kentucky. Authorities said his wrists were loosely bound, his glasses were taped to his head and he was gagged. Kentucky State Police Capt. Lisa Rudzinski said an analysis found that "fed" was written "from the bottom up." He was touching the ground, and to survive "all Mr. Sparkman had to do at any time was stand up," she said. SEPTEMBER: Census surveys halted in rural Ky. county FRIENDS: Hanged Census worker loved children Authorities said Sparkman was not under the influence of any drugs or alcohol at the time of his death. His clothes were found in the bed of his nearby pickup. "Our investigation, based on evidence and witness testimony, has concluded that Mr. Sparkman died during an intentional, self-inflicted act that was staged to appear as a homicide," Rudzinski said. Sparkman's mother, Henrie Sparkman of Inverness, Fla., bristled at the conclusion: "I disagree!" she wrote in an e-mail to The Associated Press. Authorities said Sparkman alone manipulated the suicide scene, which was so elaborate that a man who discovered the body was convinced Sparkman was murdered. Rudzinski said Sparkman "told a credible witness that he planned to commit suicide and provided details on how and when." Authorities wouldn't say who Sparkman told of his plan, but said Sparkman talked about it a week before his suicide and the person did not take him seriously. He told the person he believed his lymphoma, which he had previously been treated for, had recurred, police said. Sparkman also had recently taken out two accidental life insurance policies totaling $600,000 that would not pay out for suicide, authorities said. One policy was taken out in late 2008; the other in May. If Sparkman had been killed on the job, his family also would have been be eligible for up to $10,000 in death gratuity payments from the government. Sparkman's son, Josh, previously told AP that his father had named him as his life insurance beneficiary. Josh Sparkman said earlier this month he found paperwork for the private life insurance policy among his father's personal files but wasn't sure of the amount. Police wouldn't say who the beneficiary was. The Census Bureau suspended door-to-door interviews in the rural area after Sparkman's body was found, but a spokesman said normal operations would resume in Clay County next month. Anti-government sentiment was initially one possibility in the death. Authorities said Sparkman had discussed perceived negative views of the federal government in the county. A friend of Sparkman's, Gilbert Acciardo, previously told AP that he warned Sparkman to be careful when he did his census work. Acciardo, a retired Kentucky state trooper, said he told Sparkman people in the area would view him differently because he worked for the federal government. "The death of our co-worker, William Sparkman, was a tragedy and remains a loss for the Census Bureau family. Our thoughts and prayers are with his family and friends," said census spokesman Stephen Buckner. Sparkman's mother has said her son was an Eagle scout who moved to the area to be a local director for the Boy Scouts of America. He later became a substitute teacher in Laurel County and supplemented that income as a census worker. Friends and co-workers have said that even while undergoing chemotherapy for cancer, Sparkman would show up for work smiling with a toboggan cap to cover his balding head. They said he was punctual and dependable. Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Guidelines: You share in the USA TODAY community, so please keep your comments smart and civil. Don't attack other readers personally, and keep your language decent. Use the "Report Abuse" button to make a difference. You share in the USA TODAY community, so please keep your comments smart and civil. Don't attack other readers personally, and keep your language decent. Use the "Report Abuse" button to make a difference. Read more