Investigators probing the death of a Kentucky census worker found hanging from a tree with the word “fed” scrawled on his chest increasingly doubt he was killed because of his government job and are pursuing the possibility he committed suicide, law enforcement officials told The Associated Press.

Two officials, speaking on condition of anonymity because they were not authorized to discuss the case, said no final conclusions have been made in the case. In recent weeks, however, investigators have grown more skeptical that 51-year-old Bill Sparkman died at the hands of someone angry at the federal government.