Katherine Ann Power (born January 25, 1949), also known under the aliases Mae Kelly and Alice Louise Metzinger, is an American ex-convict and long-time fugitive, who, along with her fellow student and accomplice Susan Edith Saxe, was placed on the FBI's Most Wanted Fugitives list in 1970. The two participated in robberies at a Massachusetts National Guard armory and a bank in Brighton, Massachusetts, where Boston police officer Walter Schroeder was shot and killed. Power remained at large for twenty-three years.