(CNN Business) Katy Berteau, the fiancée of ESPN reporter Edward Aschoff, thanked people for their support and further explained how he died on his 34th birthday.

"The outpouring of love, admiration, and gratitude for his life have been so incredible, and have helped me through these last few days," she wrote in a series of 12 tweets posted to his Twitter account . "It has brought me brief moments of joy in this darkness to see all the pictures, videos, and memories of all the lives he touched."

Aschoff died Tuesday and ESPN said he had passed after a brief illness. Aschoff had tweeted about having pneumonia.

Berteau explained he was admitted to a hospital a week after they first went to the emergency room. He was diagnosed with pneumonia in several parts of his lungs.

(2/12)The outpouring of love, admiration, and gratitude for his life have been so incredible, and have helped me through these last few days. It has brought me brief moments of joy in this darkness to see all the pictures, videos, and memories of all the lives he touched. pic.twitter.com/sZLXaCQwys — Edward Aschoff (@AschoffESPN) December 27, 2019

Antibiotics didn't work and his symptoms got worse, she wrote.

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