What happened to Duncan Robinson’s brother? How Pistons guard has honored sibling's legacy after 2025 death

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On the floor, Duncan Robinson has long been considered one of the NBA’s best shooters. The wiry marksman has enjoyed wondrous spells with the Heat and Pistons, making himself an indispensable part of multiple title contenders.

Robinson’s family has played a leading role in his success, offering a platform to become one of the NBA’s most well-known role players. In April 2025, the Robinsons were dealt a tragic blow when Duncan’s brother, Eli, died suddenly.

Duncan and Eli were as close as could be during Eli’s life. Their connection remains in the time since his death, with Duncan taking multiple steps to pay tribute to his fallen brother.

With that, here’s what you need to know about Duncan Robinson’s brother, Eli.

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What happened to Duncan Robinson’s brother?

Robinson’s brother, Eli, died of suicide on April 30, 2025. He was 31 years old.

Eli dealt with substance abuse and schizophrenia during his life. His sister, Marta Robinson Day — a licensed mental health counselor — explained that Eli experienced “multiple episodes that were in line with somebody that has schizophrenia” in a television spot for ESPN that aired on May 1.

Ever since Duncan Robinson was a little kid, his big brother, Eli, was his biggest fan. While Duncan carved out a career, Eli had his personal struggles. And last year, his suffering was just too much. This is their story of loss and love (told with the incredible @simonpb17) pic.twitter.com/yOQss78m5y

He left an indelible mark on his brother, one that remains one year on.

"Eli was my inspiration," Robinson said at his brother's memorial service on May 13, 2025. "He was who I wanted to be and he was how I wanted to be. Eli, in all the ways you inspire me, with your sobriety and how you wrestled with the boldness that most of us can't even comprehend."

Robinson told ESPN that he still is finding ways to honor his brother’s legacy. Every day, he carries a pendant that features Eli’s sobriety date.

Robinson’s family also launched a foundation in his honor. The Robinson Family Foundation supports families experiencing similar challenges. It also attempts to raise awareness for mental health and the potential link between marijuana use and psychosis.

Robinson Day said the family believes early marijuana use played a role in Eli’s struggles.

"He (Eli) was having delusions, he was hearing voices," Robinson Day said. "There were multiple episodes that were in line with the symptoms of somebody that has schizophrenia. ... What they're finding in research is that if you use marijuana in a developing brain, which is considered up to the age of 25, you're at a higher risk of developing psychosis later on."