Forrest Gump star Gary Sinise shared the heartbreaking news of his son’s passing on the Gary Sinise Foundation‘s website and his Instagram page, revealing that the 33-year-old McCanna Anthony “Mac” Sinise lost his battle to cancer.
Mac was diagnosed with a rare form of cancer known as Chordoma on August 8, 2018, just three months after his mother was diagnosed with stage three breast cancer.
However, as his mother Moira’s treatment was successful, Mac’s condition only worsened over time, gradually robbing him of his mobility.
Gary expressed his immense grief for the loss of his loving son.