“My wife [Moira Harris] had been diagnosed ... “we are heartbroken and have been managing as best we can.” Related: Gary Sinise's Children: All About Sophie, Ella and Mac "As parents ...

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

Gary Sinise‘s son McCanna "Mac" Sinise died after ... but he never quit trying," Gary's tribute continued, noting that he and wife Moira Harris - who was diagnosed with breast cancer in June ...

Sinise exclusively speaks with ET about how he handled supporting both his late son, Mac, and wife ... celebs who joined Gary Sinise for his annual event held for the children of fallen military ...