That makes it more devastating and costly than last summer's Waldo Canyon fire. No cause has been determined, but lightning strike is about ruled out. In fact, no cause has been determined for the Waldo Canyon fire, either, though it is pretty certain it was human-caused. Deliberate or accidental, they don't know. It was originally feared that several people did not get out of their homes in time, but now there is only one person on the 'missing' list. (Two people died in Waldo Canyon, an older... Sign in to see full entry.