Yesterday at 7:08PM Caleb Logan Bratayley passed away of natural causes. This has come as a shock to all of us. Words cannot describe how much we will miss him. His incredibly funny, loving and wonderful spirit made us all fall in love with him as a YouTuber, friend, brother and son. We know you tune in to watch each day and eagerly anticipate new videos, but ask that you bear with us while we deal with this tragedy as a family. Please help us honor our, baked potato.
EDIT: They just uploaded a vlog from the day before Caleb died.
Source 1 & 2
I don't watch their channel but this is a very popular Youtube channel so I thought it was worth sharing.