CHARLOTTE, N.C. — Even death couldn’t stop Sam Mills. The former Carolina Panthers linebacker’s legacy has kept pounding even after he died of cancer in 2005. On Saturday will come his biggest honor yet — Mills will posthumously be inducted into the Pro Football Hall of Fame in Canton, Ohio. Represented by family, friends and colleagues, Mills will be inducted as part of an eight-man class. The ceremony will be broadcast starting at 12 noon on ESPN, with Mills’ induction slated to be one of the earlier ones in the program. “I can’t understand why it took so long for him to get in, but thankful…