Oh, sorry. On the recent news clip, the newsreader said the parents were gone for 20 minutes. And earlier the family had said that there was a time period of about 4 minutes that no one was watching DeOrr. So I figured that around 16 minutes after the parents left with IR, DeOrr vanished. So four minutes later the parents returned and said "Where's DeOrr?"
Incidentally, I was also dubious about whether DeOrr was ever at the store or whether he could have actually gone missing whilst his parents were at the store, but the Sheriff said that all four adults saw DeOrr at the campsite after the visit to the store, and seems unlikely that all four would be lying. Yes GGP might be mistaken, but IR should have known whether DeOrr was there or not, since he was apparrently awake and lucid enough to be catching fish and showing the parents his fishing spot. JMO.