Gary Sinise, the star of “CSI: NY,” has revealed that his son, McCanna “Mac” Sinise, died at 33. Mac died Jan. 5 after a five-and-a-half year battle with chordoma, a rare form of cancer.

Gary Sinise's son, McCanna "Mac" Anthony Sinise, has tragically died at the age of 33. The "Forrest Gump" and "CSI: NY" actor revealed the news on his foundation's website, sharing that Mac was ...