As part of an Edison-sponsored smear campaign against Westinghouse, H.P. Brown, an Edison ally and manufacturer of electric chairs, began electrocuting animals with A.C. The process was termed "Westinghoused" and was used to demonstrate the dangers of the new technology. That same year, the state of New York convicted William Kemmler of killing his mistress with an axe and sentenced him to die in the electric chair. Edison provided his staff to assist Brown in an effort to further damage Westinghouse's public image. The execution was a total disaster and Westinghouse suffered a great blow.