ET spoke with hosts Gary Sinise and Joe Mantegna about the 'National Memorial Day Concert,' airing Sunday at 8 p.m. on PBS. KJ Apa and Britt Robertson star in the Jeremy Camp biopic, out March 13 ...

Grief-stricken Gary Sinise has been hit with a terrible blow following the passing of his son, McCanna Anthony “Mac” Sinise, aged 33. The actor and humanitarian revealed this week that his son ...

Mac Sinise also served as drummer in Gary's band the Lt. Dan Band. "As parents, it is so difficult losing a child," Sinise writes. "My heart goes out to all who have suffered a similar loss, and ...