A beloved wellness coach died unexpectedly in the middle of filming a MrBeast video — and it remains unclear what happened to him.

"Coach was side by side with me, and now he isn't here," said Majd Khader, the man who won $417,650 in the challenge.

The news of the unexpected death of longtime former Southington resident Tyler Wall was part of the centerpiece of a viral YouTube video that was released on Saturday, and it brought an outpouring of ...