Gary, 68, shared the heartbreaking news of Mac’s death on the Gary Sinise Foundation‘s website and his Instagram page, revealing that Mac sadly lost his battle to cancer on January 5.

Gary Sinise said he was “so blessed, fortunate, and proud” to be a father to McCanna Anthony "Mac" Sinise, who died at 33 ...

Actor Gary Sinise has announced the passing of his son, McCanna Anthony "Mac" Sinise, at 33. The grieving father revealed that Mac completed a music album during his final years and remained ...

Gary Sinise opens up to ET about the death of his son, Mac, and why he wanted to tell Mac's story on his foundation's website. McCanna "Mac" Sinise died in January after battling cancer for more ...