An Oregon mother and father convicted of beating their children with pipes, 2-by-4 boards and other objects were both sentenced to spend at least two decades in prison.

Robyn and Graydon Drown were raised in Alaska, about 100 miles apart. Both of their families attended the Worldwide Church of God, a fundamentalist sect dictated by oversight from church elders and stringent moral codes.

The children described how Graydon Drown would preach his doctrine, telling them that he was the Messiah. [video]