Johnny LaMancuso, 10, of Jamestown, passed away peacefully in his home Wednesday, April 15, 2026, with his mom and dad by his side.

Johnny was born April 1, 2016, in Jamestown to John Ignatius and Gillian Marie Ditonto LaMancuso. He was a fourth grade student at Fletcher Elementary School and was a communicant of St. John's Catholic Church.

Johnny will be remembered for inspiring his community and beyond, with his toughness, bravery, and unyielding spirit.

A magnetic personality, Johnny made hundreds of friends during his decade of life. He touched the lives of classmates, teachers, neighbors, teammates, coaches, and more. His friends will forever remember him as loyal, fun-loving, kind, and competitive.

A gifted athlete and hard worker, Johnny excelled in basketball, baseball, football, soccer, golf, and fishing. He lived for sports. He played basketball, baseball, and football while receiving chemotherapy and radiation, sometimes traveling directly from the infusion clinic or radiation center to the ball field to play. #17 will be remembered for his grit, determination, positive attitude, and leadership. His friends will remember hundreds of ballgames around the area and especially on Johnny's home field in his backyard.

A loving brother, Johnny will be dearly missed by his three younger siblings. He is their hero, and is leaving with them many kisses, hugs, and sweet memories.

Johnny's bravery was revealed as he faithfully traveled the country and the world for medical treatment. He tested new therapies that will be improved upon because Johnny had the heart and courage to try.

Surviving besides his parents are sisters Alessandra and Miriana and brother Santino; grandparents John and Kathleen LaMancuso of Jamestown and Guy and Ellen Ditonto of Jamestown; great-grandmothers RosaLee Owen of Dunkirk and Nellie Ditonto of Lakewood; and many aunts, uncles, and cousins.

He was preceded in death by great-grandparents Donald Owen, Bennie Ditonto, Ignatius and Loretta LaMancuso, and John and Beatrice Kinnear.

Continuing Johnny's commitment to make this battle better for the next kid, the LaMancuso family is requeseting that memorial danations be directed tot he Little Warrior Foundation, a leader in treatment development for Ewing Sarcoma.

To learn more about the Little Warrior Foundation, please visit the foundation’s website.

Little Warrior Foundation is a 501(c)3 non-profit. EIN: 84-4322722

If you prefer to donate by check, you can send to:
Little Warrior Foundation Inc
PO Box 2124
Brookfield WI 53008-2124
Please include Johnny LaMancuso on the memo line.

In Memory of Johnny LaMancuso

Remembering Johnny and his courageous battle with Ewing Sarcoma.