Popular animator Monty Oum has passed away, employer Rooster Teeth has announced. Monty Oum first rose to popularity when he created a Metroid/Halo crossover video dubbed “Haloid,” and he gathered a large following of dedicated fans with his YouTube series Dead Fantasy. In recent years, he worked for Rooster Teeth, helping animate shows like Red vs Blue and RWBY. Monty suffered a severe allergic reaction during an unspecified medical procedure ten days ago and fell into a coma; he passed away yesterday at the age of 33. Our thoughts go out to his family, friends, and co-workers. Here’s Rooster Teeth’s official statement:

Our friend, inspiration and co-worker Monty Oum passed away yesterday afternoon at 4:34 PM surrounded by people who loved him very much. Ten days ago Monty suffered a severe allergic reaction during a simple medical procedure that left him in a coma. Although he fought bravely, his body was not able to recover. During his time in the hospital he was well cared for and never in pain at any time.

Monty is survived by his wife Sheena, his father Mony, his brothers Woody, Sey, Chivy and Neat, and his sisters Thea and Theary, as well as a countless number of fans and friends. We were so proud to be a part of his life and we will miss him greatly.

Your generosity during the hours after the public statement on Friday will help his family deal with the costs of his care and his passing. You made an incredible difference during a difficult time and we cannot thank you enough.

As for honoring Monty, we will do that in our own way. In lieu of flowers or gifts, we ask that you simply do something creative. Use your imagination to make the world a better place in any way that you can. If you know Monty like we do, then you know he would certainly be doing that if he were able to.

Monty was 33 years old.

We love you, Monty.