Not sure if it was mentioned that cremains were dumped "during" the search.
Still not sure if someone saw them doing it and reported it to LE or ???
Also from this same link from today (7/20/15), I wasn't aware they had searched and ruled out a wolf den, etc. See link below
Cadaver dogs led law enforcement directly to the reservoir but Bowerman said unrelated cremated remains
dumped into the water during the search likely prompted the canines' interest. A search of the reservoir using advanced sonar equipment yielded nothing, he said.
Over the weekend, the sheriff and his deputies carefully
examined a nearby wolf den but found not a single clue --
no remnant of clothing or sign the boy had been dragged from the campsite.
"We've got a pack of wolves in there --
about 15 of them," Bowerman said. "We actually chased one out the day before yesterday."
http://790talknow.com/foxfeedspro/de...missing-child/