Oh so sorry...he was a lot of fun and very bright. Seems we are losing so many now.

So sad. We loved that show and all the people on it. He was a good sport and an inspiration to so many kids.

We loved both of those shows...started with the original and then of his

group. What a terrible shame...for such young man and such a problem

solving mind. RIP Grant..you gave us fun and education too.

Hard to imagine that he was 49. I will always think of him as a very young man. I'm sorry to hear that he died.

I never watched regularly but I liked the two original guys. I was surprised to learn of the enmity between them, it was well hidden onscreen.

I must have stopped watching by the time this fellow came along but it's too young for anyone to die. It's sad for him and his friends and family.

Really sad. We never missed an episode. And of course tried some of the things (Mentos in coke for example) with our girls after :)

Grant was always one of my favourite Mythbusters, so knowledgeable of science and good at making it fun. I was very sorry to hear he has unexpectedly passed away.

very sad. Really enjoyed him. He worked with Disney and they were going to use his work ...

On June 29, 2018, Disney revealed that the Stickman prototype had evolved into an innovative, autonomous, self-correcting, acrobatic style of audio-animatronic figure, named Stuntronics, which will be utilized within Disney theme parks throughout the world.[27]

What a sad, sudden loss for his family and friends. God bless his soul.

Sad. I liked seeing him on Myth Busters