Gary Sinise is honoring his late son, McCanna Anthony "Mac" Sinise, who died Jan. 5 from a rare form of cancer called chordoma. He was 33.The actor, famous for
McCanna Anthony “Mac” Sinise, a musician and son of actor Gary Sinise, died on Jan. 5 following a battle with a rare spinal cancer called Chordoma. He was 33.…