The LA Times reports that Dorner was discovered first by two maids who came to clean a cabin he was in. He tied them up, but one eventually got free and called 911. Then, two Fish and Wildlife officers spotted Dorner, who fired on them. One of the officers fired back. Dorner continued on until losing control of the vehicle he had stolen. His charred remains have been taken from a cabin.
Read more here: http://latimesblogs.latimes.com/lanow/2013/02/maids-surprised-suspect-in-cabin-were-tied-up-then-called-cops-.htmlUpdate: Were they maids, or owners of the cabin? the latest report is that it was the owners of the cabin who called 911.