Adam Cook, the older brother of American Idol Season 7 champion David Cook, has died.

Adam lost his ten year battle with brain cancer in Terre Haute, Indiana early Sunday, according to KansasCity.com.

He was 36.

David Cook, a native of Blue Springs, was on a jet en route to Terre Haute when his brother passed away.

“Adam passed away peacefully. He was surrounded by his family, including his wife, Kendra, his children, his father and his stepmom, among others,” a family friend said in a statement Sunday.

“The family thought that Adam would go much sooner than this, actually….That’s why David left his tour a few weeks back so that he could be with Adam. They said their goodbyes then.”