Kemmler was executed in New York's Auburn Prison on August 6, 1890; the "state electrician" was Edwin F. Davis. The first 17-second passage of 1,000 volts AC of current through Kemmler caused unconsciousness, but failed to stop his heart and breathing. The attending physicians, Edward Charles Spitzka and Carlos F. MacDonald, came forward to examine Kemmler. After confirming Kemmler was still alive, Spitzka reportedly called out, "Have the current turned on again, quick, no delay." The generator needed time to re-charge, however. In the second attempt, Kemmler received a 2,000 volt AC shock. Blood vessels under the skin ruptured and bled, and the areas around the electrodes singed. The entire execution took about eight minutes. George Westinghouse later commented that, "They would have done better using an axe", and a witnessing reporter claimed that it was "an awful spectacle, far worse than hanging".