When the iconic sandstone formation known as "the duckbill" collapsed, the Oregon Parks and Recreation Department wasn't suspicious.
Erosion happens. Rocks fall. The stretch of cliff where the formation was located, in Cape Kiwanda State Natural Area, was so unstable it was fenced off to keep visitors away. There seemed to be no mystery: The 7- by 10-foot pedestal on the coast probably collapsed on its own.
Then a man named David Kalas said it wasn't time and weather that brought down the rock. It was vandals.
And he had video.