Grant Imahara, the engineer who co-hosted Mythbusters for Discovery and White Rabbit Project on Netflix, has died at the age of 49 from a brain aneurysm. In a statement to The Hollywood Reporter and Variety, Discovery said:

“We are heartbroken to hear this sad news about Grant.

He was an important part of our Discovery family and a really wonderful man. Our thoughts and prayers go out to his family.”

After a career as an engineer at Lucasfilm’s THX and ILM divisions, Imahara joined Mythbusters in the show’s third season but left in 2014 alongside co-hosts Kari Byron and Tory Belleci.

Happy #MayTheFourth from me and #BabyYoda! I was lucky enough to work at @Lucasfilm_Ltd and @ILMVFX on #StarWars projects from 1993-2005. I look back on those years fondly and look forward to their plans for the future of the franchise. #MayThe4thBeWithYou #TheMandalorian pic.twitter.com/AphjVWjZy8

— Grant Imahara (@grantimahara) May 5, 2020

However, the trio later reunited for Netflix’s White Rabbit Project in 2016. Imahara was also active in the robot combat community, regularly appearing on BattleBots in the early 2000s with his robot Deadblow and later returning as a judge.

Former Mythbusters co-hosts Adam Savage and Kari Byron, as well as the late Imahara’s wife Jenny Newman, tweeted:

I’m at a loss. No words. I’ve been part of two big families with Grant Imahara over the last 22 years. Grant was a truly brilliant engineer, artist and performer, but also just such a generous, easygoing, and gentle PERSON. Working with Grant was so much fun. I’ll miss my friend.

— Adam Savage (@donttrythis) July 14, 2020

Somedays I wish I had a time machine. ⁦@ToryBelleci⁩ ⁦@grantimahara⁩ pic.twitter.com/o9FRE2l16W

— Kari Byron (@KariByron) July 13, 2020

I haven’t found the words. I don’t know if I’ll be able to. I lost a part of my heart and soul today.
He was so generous and kind, so endlessly sweet and so loved by his incredible friends. I feel so lucky to have known him, to have loved & been loved by him.
I love you, honey. pic.twitter.com/d7secP1Ols

— Jenny N (@Jennernugen) July 14, 2020