UPDATE: Tornadoes kill dozens in 5 states...
Officials struggle to count dead...
Survivors relive horror; 'All could hear was screams'...
Waited, panicked, prayed...
75% of town gone...
Thousands without heat, water...
Strangers find family mementos far from wreckage... Photo lands 130 miles away!
At AMAZON Site, Twister Collided With Peak Delivery Season... WORKER DEAD AFTER WARNING WAREHOUSE...