More than 200 Unaccounted for in Colo. Flooding

Four killed

As furious waters flow through flood-devastated northern Colorado, fears and tales of devastation grow.

At least four people have been killed and 218 are unaccounted for, officials say.

The nightmare is far from over as the state awaits more rainfall Saturday, threatening to send swollen rivers gushing through streets choked with debris. The rain is expected to come down heavy Sunday.