Heartbroken Gary Sinise mourning sudden death of son, 33

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.

“Like any family experiencing such a loss, we are heartbroken and have been managing as best we can. As parents, it is so difficult losing a child. My heart goes out to all who have suffered a similar loss, and to anyone who has lost a loved one. We’ve all experienced it in some way. Over the years I have met so many families of our fallen heroes. It’s heartbreaking, and it’s just damn hard,” the heartbroken actor wrote.

“Our family’s cancer fight lasted for 5 ½ years, and it became more and more challenging as time went on. While our hearts ache at missing him, we are comforted in knowing that Mac is no longer struggling, and inspired and moved by how he managed it. He fought an uphill battle against a cancer that has no cure, but he never quit trying.”

A number of celebrities posted messages of support for Gary and his family on Instagram.

“We are so sorry Gary. You & your family are deeply loved by so many,” wrote Angie Harmon. “We are all praying for you. Love you so very much.”

Alyssa Milano, meanwhile, posted: “I’m so sorry, Gary. I’m praying for your family. And sending you love and strength.”

Mac’s life was a fulfilling one. He joined the Gary Sinise Foundation as an assistant manager of education and outreach and pursued his passion for music until the very end. He performed alongside his father in the Lt. Dan Band as a drummer.

Since his diagnosis, Mac had undergone five spine surgeries and was left paralyzed from his waist down, but he never stopped doing what he loved; making music. Just before his passing, he had completed work on an album Resurrection & Revival.

Mac studied songwriting and composition at the University of Southern California from where he graduated.

Gary said that the family is ensuring Mac’s album, Mac Sinise: Resurrection and Revival, is released and pressed on vinyl.

Mac was laid to rest on January 5.

We are so sorry for Gary Sinise loss. Our thoughts and prayers go to him and his family during this time of grief.

Please SHARE this article with your family and friends on Facebook.

Bored Daddy

Love and Peace

Monica Pop
Monica Pop
Monica Pop is a senior writer for Bored Daddy magazine covering the latest trending and popular articles across the United States and around the world.

More from author

Related posts

Latest posts

The Last of Us star Bella Ramsey shares why they have some regrets about coming out as non-binary

Bella Ramsey, the star of The Last of Us, came out as non-binary in 2023 during the film's promotion. Now, two years after revealing...

Major alert for defaulted student loans: A new policy shift impacts more than 5 million people

Payments on student loans were paused during Donald Trump’s first presidency in response to the COVID-19 pandemic when a huge number of businesses closed...

Pope Francis’ final words before passing aged 88

Pope Francis “returned to the home of the Father.” He died on Easter Monday, April 21, 2025, at the age of 88 at his residence...

Resurfaced video captures holocaust survivor challenging ICE director

Bernard Marks, a holocaust survivor, challenged US ICE Acting Director Thomas Homan in 2017 during a public forum on immigration. Now, the video of...

Pope Francis’ shocking net worth at his time of death

With the words that Pope Francis "returned to the home of the Father," Cardinal Kevin Farrell announced the passing of the first Latin American...

Simulation reveals harsh effects of Ozempic on the body

The desire to look attractive has always been present. However, this urge has increased drastically with the rise of social media and influencers who...