Tributes pour in for man with ALS who championed viral ice bucket challenge

Peter Frates, 34, lost his battle with ALS that began at age 27 and the former Boston College baseball star co-created the Ice Bucket Challenge in 2014 to raise awareness for Lou Gherig’s disease.
2:39 | 12/10/19

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Transcript for Tributes pour in for man with ALS who championed viral ice bucket challenge
Now we turn to the tributes pouring in overnight for the man behind the ice bucket challenge. Peter Frates who lost his battle with als at just 34 years old. Will reeve is here and, will, he leaves behind a legacy of courage and inspiration. Absolutely, Michael. There are certain people who change the world in the brief time they have and Pete Frates is one of them. He died yesterday after a public battle with als and leaves behind a wife, a daughter and a legacy that captivated and inspired millions and redefined the future for millions more. He was the driving force behind the movement that flooded our social media feeds. Pete Frates, once a Boston college baseball star, at just 27 years old diagnosed with als, becoming an advocate and a hero. For a young guy like myself to be diagnosed, hopefully I can use my youth and the networks I'm part of to promote some awareness. Reporter: Galvanizing the ice bucket challenge in 2014 to raise money and awareness for als. I'm proud to take the ice bucket challenge. Reporter: Touching everyone from Bill Gates to Oprah to those of us at "Gma." Aaagh! Reporter: The challenge raising hundreds of millions of dollars to help the Progressive terminal condition also known as Lou Gehrig's disease that slowly ravaging physical functions. Bringing profound hope for the future for people like Sara Olson. She's being treated with one of only two treatment as valuable to als treatments fast-tracked and approved in part because of the ice bucket challenge. It's helping, yeah, that's months on my life because of Pete I have that chance. Reporter: Frates lived a full life in the years after his diagnosis. Marrying his love Julie who participated in the ice bucket challenge while pregnant with their daughter Lucy. An event the little girl would soon recall with pride? My mommy dumped water on her head when she had a black dress on. I was actually there. Reporter: Pete Frates died at 34. His name, his impact and his legacy will live forever. Tributes to Frates have been coming in from everywhere since he died and one that perhaps he and his family would be most proud of, the als association tweeting that Pete Frates changed the trajectory of als forever and showed people how to live with a fatal disease. I think he showed people how to live, period. He certainly did. Special person. Oh, my goodness. Really, really touching to know that he existed at the same time we did. Touched so many of us.

This transcript has been automatically generated and may not be 100% accurate.

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