An Obama administration senior technology adviser was killed in a bicycle accident Saturday.

Jake Brewer was participating in a charity bicycle ride when he lost control at a sharp curve in the race course, crossed a double-yellow line and was struck by a vehicle, according to CBS News.

Brewer, 34, was a senior policy adviser in the White House Office of the Chief Technology office, according to CBS News.

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Brewer's wife, Katherine Ham, posted about her husband's death on Instagram Sunday.

"We lost our Jake yesterday, and I lost part of my heart and the father of my sweet babies," she wrote. "I will miss him forever, even more than I can know right now."

We lost our Jake yesterday, and I lost part of my heart and the father of my sweet babies. I don't have to tell most of you how wonderful he was. It was self-evident. His life was his testimony, and it was powerful and tender and fierce, with an ever-present twinkle in the eye. I will miss him forever, even more than I can know right now. No arms can be her father's, but my daughter is surrounded by her very favorite people and all the hugs she could imagine. This will change us, but with prayer and love and the strength that is their companion, we can hope our heartache is not in vain-- that it will change us and the world in beautiful ways, just as he did. If that sounds too optimistic at this time, it's because it is. But there was no thought too optimistic for Jake, so take it and run with it. I will strive and pray not to feel I was cheated of many years with him, but cherish the gift of the years I had. In a life where nothing is guaranteed, Jake made the absolute, ever-lovin' most of his time with all of us. This is a family picture we took a couple weeks ago. It was taken because Jake, as always, was ready with a camera and his immense talent. All four members of our little, growing family are in it. I can never be without him because these babies are half him. They are made of some of the strongest, kindest stuff God had to offer this world. Please pray that he can see us and we'll all make him proud. God, I love him. Psalm 34:18, Philippians 1:3

A photo posted by Mary Katharine Ham (@mkhammertime) on Sep 20, 2015 at 7:25am PDT


President Obama shared some of his sentiments about Brewer on Facebook.

"Simply put, Jake was one of the best," he wrote. "Armed with a brilliant mind, a big heart, and an insatiable desire to give back."