Jack L. Mettler, 78, of Fort Wayne and a longtime resident of Bluffton, passed away early Sunday morning, Nov. 27, 2022, at Lutheran Hospital in Fort Wayne. Jack was born on Nov. 21, 1944, in Bluffton to Robert E. and Virginia R. (Hughes) Mettler. A 1963 graduate of Bluffton High School, Jack served his country…