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Tragedy in Moore

An aerial view shows Briarwood Elementary with vehicles thrown about after Monday's tornado in Moore, Okla. At least 24 people, including nine children, were killed in the massive tornado that flattened homes and a school.

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Tragedy in Moore

A child is passed along a human chain of people after being pulled from the rubble of the Plaza Towers Elementary School in Moore, Okla., and passed along a human chain of rescuers Monday. A tornado as much as half a mile wide with winds up to 200 mph roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school.

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Tragedy in Moore

Teachers carry children away from Briarwood Elementary school after a tornado destroyed the school in south Oklahoma City, Monday, May 20, 2013. A monstrous tornado roared through the Oklahoma City suburbs, flattening entire neighborhoods with winds up to 200 mph, setting buildings on fire and landing a direct blow on an elementary school.

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Tragedy in Moore

Children wait for their parents to arrive at Briarwood Elementary school after a tornado destroyed the school in south Oklahoma City, Okla.

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Tragedy in Moore

Lea Bessinger and her son Josh Bessinger look through the rubble of her tornado-ravaged home Tuesday. A huge tornado roared through the Oklahoma City suburb Monday, flattening an entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds.

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Tragedy in Moore

Residents pass a destroyed car as they walk through a tornado-ravaged neighborhood Tuesday, May 21, 2013, in Moore, Okla. A huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds.

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Tragedy in Moore

An aerial view of an entire neighborhood destroyed by Monday's tornado is shown. At least 24 people, including nine children, were killed in the massive tornado that flattened homes and a school in Moore.

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Tragedy in Moore

Cindy Wilson texts to friends Monday after her home was destroyed by a massive tornado that ripped through Moore, Okla., in the afternoon. Wilson and her husband, Staff Sgt. B. Wilson, took cover in their bathtub when the tornado hit. Cindy received a deep gash to her forehead and her wound was treated by first responders at the scene.

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Tragedy in Moore

A local resident allowed by security officers into an otherwise sealed off neighborhood walks past the rubble of destroyed homes, one day after a tornado moved through Moore, Okla. The huge tornado roared through the Oklahoma City suburb Monday, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds up to 200 mph.

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Tragedy in Moore

Jimmy Hodges helps Chad Heltcel and his wife Cassidi salvage the wreckage of Chad Heltcel's family home, which was destroyed Monday. The huge tornado roared through the Oklahoma City suburb, flattening entire neighborhoods and destroying an elementary school with a direct blow as children and teachers huddled against winds.