Los Angeles [US], February 28 (ANI): American actor Gary Sinise’s son, McCanna Anthony ‘Mac’ Sinise, has died, People reported. He was 33. Gary announced Mac’s death in a statement posted on Instagram on Tuesday late night, saying he died of cancer on January 5. https://www.instagram.com/p/C33K4w9P99H/?utm_source=ig_embed&ig_rid=9e3bd7d6-6eb1-43e9-a742-b310fbb14796 On August 8, 2018, the actor revealed that Mac had been diagnosed with a very rare cancer called Chordoma. The disease originates in the spine and affects approximately 300 people in the United States each year, he noted. The ‘Forre…