In honor & memory of
McCanna Anthony "Mac" Sinise
1990-2024
Dear Friends,
From the moment we posted our story on February 27th, your messages of support began to pour in. Thousands here now. Our family is so touched and we want you to know how deeply we appreciate your kindness and taking the time to share your thoughts and condolences with us. It has all helped to lift us up during this difficult time.
God bless you and thank you.
Messages from Mac's GSF Family
Working alongside my brother-in-law and serving in his family's beautiful mission has been one of the biggest blessings of my life. Mac had a passion to bridge the gap between our nation's defenders and civilian communities, ensuring that Americans know the sacrifices our nation's defenders and their families make to keep us safe. Mac was a man of faith, truly humble, thoughtful and caring. There are no words to describe how missed he will be, but we are forever filled with gratitude for the precious time we had with him.
Mac was truly a special guy. His warrior spirit, commitment to faith, and his family was an inspiration to me. The way he lived his life forever changed mine as a child of God, husband, father, and friend. Thank you for all you blessed us with in your time here, Mac. You live on in each and every one of us.
Mac was a man of incredible compassion, witty humor, and endless empathy. He found his joy and purpose in our mission, in honoring our nation's heroes and their families. Even when he could no longer physically make it to the office, he was always trying to find a way to “do a little more.” I know he continues to serve alongside us, just beyond the veil. I will miss him and our deep conversations about everything till the end of my days. Heaven welcomed one of our very best.
We met Mac when he was 11 years old at Epcot in Walt Disney World, when his Dad was narrating the Candlelight Christmas show we perform in. We bonded right away through our passion for percussion. It was a thrill to watch him grow as a musician and person and we supported him as the substitute drummer for the Lt. Dan Band, a task that he fully embraced. We so admired his positive, inspiring spirit even through the devastating illness. We love you Mac and your spirit will live with us forever.
Mac was extraordinarily kind and introspective, always deeply pondering something. I rarely had a conversation with him that didn't wander down several paths that encouraged me to take pause, explore a thought, or reflect upon an idea. He thrived doing the work of the Foundation and fueled our mission with new ideas to ensure we were always creating and trying new things. I am incredibly grateful for the time I was able to spend with Mac over the years and was honored to be able to call him a friend. To know Mac was to know one of the best people life has to offer.
Write a message to the Sinise Family
We welcome you to contribute to our message wall below. These messages will be shared with the family.
Mac's Message Wall
Mac, I never met you however your Dad Gary was a part of my life growing up. I know he loved you hard and misses you. What GSF has done for families should be written about in every history school book in the U.S. God speed Sinise family, special place in Heaven for all of you.
Texas
What a beautiful family you have. I am so sorry for your families loss but how blessed you are to have such beautiful memories from him. The tribute he left and you shared is such a heartfelt story that you have shared with us. God be with all of you and may your sorrow be soon beautiful memories🤍
Arizona
Gary, your podcast with Theo moved me profoundly. What an incredible human being and father you are. Much love to you and your family. Thank you for sharing your love for Mac and his beautiful music. Thank you for your service. ❤️🇺🇸
Arizona
Dear Gary and Family, I just finished listening to you on Theo. I am so deeply moved by your love for your son. I am listening to Mac’s music and it is just wonderful. He was extremely talented. His life, his story, his love is very much alive. Thank you and Mac for sharing with us. God Bless
New York
Gary, I can't express how strong you must be. I heard you speak about your boy on Theo. He was such an amazing young man. My heart aches for you and your family. Your story of Mac and his strength touched me so much. Thank you for sharing his story with us. God bless you
Oklahoma
Losing your child must be the hardest thing to endure. Thank you for sharing his story, and thank you for all that you do for our Vets and military families.
California
Hi Gary, I´ve just seen you on Theo Von telling Mac´s story and about the foundation. I´m sending love your way. Mac seems to have been an amazing guy, I´m glad he gifted us with his music. My deepest condolences to you, your family, and the GSF, thank you so much for the work you do.
International
This tribute - from father to son - is so beautiful. This is a wonderful and beautiful memorial to Mac from a loving dad. I am touched by the love and thoughtfulness of Mac in leaving behind so much beauty to be discovered to help loved ones grieve - and heal. My warmest sympathies. USMC Veteran.
New York
I’m sending this message from Australia, the People’s YouTube video bought your family’s message to me today. All I can say is that all over the world loving families are truly blessed no matter the difficulties they are facing. From here on I will remember that Mac and I share our birthday. K
Arizona
Seeing you yesterday performing and talking openly about Mac and his journey, you work harder than anyone to cure Chordoma. We will do our part. Thank you Gary.
Texas
Just watched your video. Gary..you are truly a remarkable man. Listening to you tell all about your family's health struggles hurt my heart. Mac was a true gift from God. So sorry he has left your family and the void that presents. I will continue to lift you and your wonderful family in my prayers
Massachusetts
Sending thoughts and prayers from France. May Mac rest in perfect peace and may the thought of him always make you smile. Sincerely
International
My sincere condolences to the loss of ur son Mac. I was very honored to serve as the #2 flight attendant with American Airlines on your first Snowball Express Flight. It forever affected me for your generosity and love for every military service man and woman. God bless you and your family.
California
DEAR GARY,* GOD BLESSED ME, RETURNING FROM TET OFFENSIVE IN 1967, WITH JUST, PTSD THAT WAS so destructive a miracle I'm now 76 was 19, from Vietnam, so many didn't make. I feel your love of life. God bless be strong in the Lord and the power of his might, mayTLord be with you and family PS 91
Michigan
To the Sinise family. Sending prayers for comfort and consolation during this difficult time of grief and sadness due to the loss of Mac. I lost one of my identical twins, Mary Sue Williams Mitchell at age 58 in 2016 due to Glioblastoma of the brain. So I understand how you feel. GOD BLESS 🙏
Michigan
Gary I lost mt little girl in 1980 at 7 months old man it still seems like yesterday. So I can't imagine losing a child after 30 years believe me my heart goes out to you sir. God bless I have 4 sons now and hope I don't have to lose any more children I'm 67 and couldn't take that. Wish you love
Missouri
Mr. Sinise, my condolences again for Mac. Inspired by your strength and service, I’d be grateful for your personal perspective on staying grounded and making a difference today, especially in politics. If possible, please contact me at alies@myyahoo.com Thanks so much.
Georgia
To Gary and wife and family from all your brothers and Gk of Olympia council 394 to your great and special Son Mac after your battle with Cancer Rest in Peace and God Bless you and all your family we are fundraising fkr a cure for Mac from Gk Antonio Caniano and your brkthers of Olympia council 394
New York
I had no idea of your family’s medical headships until I came across your People interview tonight, 9/8/25. My heart sank. It prompted me to search out Mac’s music on YouTube. I sat here blaring Arctic Circle! It is one of the most uplifting pieces I’ve ever heard. Thank you Mac ♥️
Connecticut
A true gift to this world, thank you for sharing his story❣️
West Virginia
These words touched me deeply. I think that my brother Jordan would have really liked to know Mac. They were both brave fighters. Jordan passed away in 2012 after a 3-year battle with cancer. So much about Mac's story reminds me of the days we fought together. My best wishes to the family.
Not enough room to state my feelings regarding the Senise family and all they do. In short im sorry for your loss. Happy Mac was able to reach his goal. Thanful to the family for supporting those needing help
Hello Gary. I had a nephew, Jason LaFlame who passed away from cancer last year in May. His parents, my sister Janice and husband Paul, a retired Air Force Weapons Chief lost their only child. I found your story comforting. Thank you for sharing.
Mac, is simply amazing. Thank you for sharing so very much!!!!!
Quick note: I met Gary in The Netherlands in 2005(?). Wonderful man. He does wonderful work. I see stories once in a while where it reminds me to donate to his foundation. I've been busy caring for my cancer sickened (now deceased) wife. I just read "Mac's" story. I am so sorry. Love 2 U.
Heaven now has another angel that has more than earned his wings during his time on earth. May God bless you all in the loss of your beautiful son.
Gary, You are a good Person No politics Think of others and their suffering first RESPECT.
Gary, my heart breaks for you and your family. There is no greater pain than losing a child. I know this pain from my own experiences. God blessed me with three sons, unfortunately I have had to bury all three. My first son died at birth, my second at 18 in a car crash and my third when he was 34.
Gary, I am a faithful CSI New York fan. I learned that you had lost your beloved son. My healing thoughts go out to your family. I also lost a child unexpectedly when she was 35. It is definitely devastating. Faith helps us. Your son was a very great, giving human being. My prayers are with you all.
My heart is breaking for you and your wonderful family. He chose you to be his family for a reason. He knew you would be able to get the message out about this rare cancer. God Bless you all xx 🙏
To the Sinise family, I am so sorry for the loss of your beautiful son Mac. I lost my son Taylor 3-17-24. I understand the loss that words can’t truly capture the magnitude of pain, loss and love we carry. Thank you for sharing your son Mac’s story with us. With respect.
Dear Sinise family, Gary's tribute brought me to tears. I know he is a great actor, but now I see he also has a great family and faith. It brings me such joy to see the goodness of people, even with all the major struggles. I lost my mom to cancer in 21. God bless your family.
My husband (also Gary) a NYS Trooper met Gary years ago (at 9-11). We saw him in passing years later near the G-0 site. He’s a truly genuine human, and this latest interview really solidified that for me. Our hearts feel his (& his family’s) loss of Mac.
I've use to watch Gary on TV and I've recently watched a interview about Mac. For me was something curious because Mac was the detective's name on CSI:NY and from now I can only see as a homage to this soldier who battle for his life. Truly inspirational his story. Big hug from Rio, Brazil!
Thank you for the music, Mac. That was so moving. It reflects your beautiful soul. Thinking of you today.
Mac died too young. He had a remarkable talent and I have every one of his songs in my favorite playlist. Rest in peace ❤️
Such a profound story, may God bless you all and hold you in love and prayers, always ❤️
I recently watched an interview Gary did about Mac’s journey. It is raw, moving, and inspiring. Gary said they were a team. There’s something about that statement that resonated with me. You two are still a team because the work and the music lives on. Sending a virtual hug to Gary and his family.
I was on YouTube and watched an interview Gary Sinise did regarding his acting career, his son's illness and his outreach. My father died of cancer. I cried. I sympathized. I prayed for the family. My thoughts are with you all. ❤️
Jan 2024 I was diagnosed with Pancreatic Cancer that thru Grace of God I Won, celebrating this month 1 year since my Whipple Surgery and Building Guitars for Charity's as Donations. We should talk about me gifting foundation with instrument
To Gary and family - I've followed Gary's career, and have enjoyed all his roles as genuine. I thought Gary's Lt. Dan role was outstanding. So sad for your loss. Please heal and preserve only the happy memories of Mac. Gary's contributions and those of his family are American treasures.
As a person who has known Cancer personally twice, lost my dearest husband and precious mother to it eighteen days apart in the same year, your story of Mac meant so much to me. Your son was truly special and I am so very sorry you lost such a beautiful soul too soon.
Dear Mr Sinise the words you use to describe your family and Mac are extra-ordinary. I am touched by the strength some humans have as your magic son. Forgive my imperfect English. I wish you and your wife beautiful dreams in your nights and to keep on as you are as you are very special to each of us
I myself am battling stage 4 colon cancer at the age of 43. I am so sorry for your loss of dear Mac. I heard Artic Circles and the emotion in that music is beautiful. When I am weak I will listen to it and think of how strong Mac was. Maybe it will help me feel stronger.
Thank you for your courage in sharing Mac's story and your grief journey. Your openness brings comfort & hope to so many of us walking the same path. Hearing you speak about Mac reminds us that we are not alone. Having a space to share and be understood means more than words can express. Thank you
Dear Sinise Family, I wanted to send my condolences to you, since I just learned of your loss. You are a remarkable family and give so much love to the community and veterans. Mac is a beautiful child. So sorry for your struggles, it really brought me to tears. Regards, Barresi Family
Hallo Mr. Sinise, es tut mir außerordentlich leid was ihnen alles passiert ist. So etwas durchleben zu müssen kann keiner verstehen der es nicht selbst ansatzweise erlebt hat. Ich habe ihre Geschichte gelesen und war zutiefst traurig… Ich hoffe das Sie und Ihre Familie über den Schmerz hinwegkommen
Having just read your “Tribute to Mac” I noted what a wonderful boy he was and an inspiration to those who take a moment and reflect all that can be done with a life. I listened to his album on YouTube, just so beautiful and peaceful. My condolences to your and family.
I’m so sorry for the loss of your son, Mac. My heart goes out to you and your family. My best friend and her husband lost their only son, Noah, when he was fighting in Iraq. They wrote a book about him called Simply American. Their names are Lucy and Rick Harris. I’m praying for God to comfort you.
Oh man. His song I got to listen to the first one so far Arctic circles took my breath away how talented he is. Can’t wait to meet you, Mac there’s no doubt your composing for our Lord Jesus Christ, how beautiful and talented you are and one great drummer I love it all this should be put on CDs too!
So very sorry for your loss. You and your family are in my thoughts and prayers.
Family- Thanks you for sharing your experiences with navigating the cancer with Mac. My brother Edward Tico, had a rare cancer and his fight for life was an inspiration to our family and friends. He lost the fight, but what he gave us lives forever. Bless them both and bless your family!