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.

He was 33 years old. Gary Sinise reveals his son, McCanna, also known as 'Mac,' has died following a battle with a rare cancer. He was 33. The 'CSI: NY' star honored his late son with a message on ...

At the age of 18, Gary Sinise co-founded the Steppenwolf Theatre ... He has played Det. Mac Taylor on CSI: NY since 2004. ADVERTISEMENT ...