According to the Oakland Tribune: Bag of bones goes missing in Atherton.
And yeah, it was a real bag of human bones. A police search and rescue dog was doing a demonstration, after which, according to the Tribune “the organizers accidentally left the bones behind overnight inside a black plastic bag.” This forced a new search and rescue:
When the organizers realized the gaffe, they went back to the park on Tuesday and couldn’t find them after a search. The bones were reported missing that day.
“They were probably just thrown away,” the police official said.
So if you find a bag of bones near Atherton, kindly give them back to the dog.