Tragedy has struck the Brazilian Jiu-Jitsu world, as an instructor passed away during training on Wednesday night. Precision Jiu-Jitsu instructor Zach Stewart suffered from an undisclosed condition while training on Wednesday. Training partner and friend to Stewart, Pete Shoemaker has since come forward with details on the situation. Check it out below: "I\u2019m writing this post to let you know that Zach Stewart passed away last night while we were training at the gym "Nothing happened, no injury or trauma that we are aware of, he just passed away. Nothing is 100% conclusive yet, but he may have had an aneurysm or something similar. It makes no sense and I still don't understand how this could have happened. "Thank you to all of you who helped try to save him. From those of you who were there at the gym to the doctors at the hospital thank you. We did all that we could, but nothing we could have done would have changed the outcome. So many people today are blaming themselves, including myself, but we must be rational and realize that is just our grief. "This seems so callous to be giving this information out in this way, but because so many people witnessed what happened, we thought it was necessary to send out this information on a broad scale. "Zach's family will need all of our help for sometime to come, but Karena has understandably asked for some space over the next few days. Please, if you have questions or concerns direct them to me for now. Karena needs time with her family. "Please keep Karena, Everett, Harrison and the rest of Zach's family in your thoughts. "The gym will be closed for the rest of the week. We will be posting how to donate to his sons\u2019 college funds and also to a scholarship in his name in the coming days. "I\u2019m posting this picture of him with my girls because this is how I\u2019m choosing to remember my brother." https:\/\/www.facebook.com\/pete.shoemaker.3\/posts\/10217531088295676 For more MMA news click here.