Weren't the brothers alive and well at 11:00?WARNING, gruesome speculation to follow:
This aerial video shows the search crews sifting through large piles of dirt with screens. IMO they wouldn't be doing that if they thought the brothers' intact bodies were buried there. LE sifts through dirt methodically when looking for bone fragments or teeth or small pieces of evidence. I suspect the bodies may have been burned and LE is sifting through the dirt looking for what is left of them. I hope I'm wrong. But I also hope they find something of the brothers for their loved ones to have a proper memorial and for justice to be served. JMO.
That only leaves about an hour or so for him to kill them and get rid of their bodies, if that's what he did.
Whatever he did must have been done with haste. I hope they find them soon. they can't be too far. Imo