CNN's Tom Foreman explains the strength of the tornado in Oklahoma and why some buildings couldn't withstand the force.

The mayor of Moore tells CNN's Brian Todd that there were no shelters at the schools a tornado pulverized in Oklahoma.

Jodi Arias asks a jury to spare her the death penalty, saying her case has already caused everyone enough pain.

If spared the death penalty, convicted murderer Jodi Arias says she will make her life in prison worthwhile.

Emily Schmidt reports from hard-hit Moore, Oklahoma, where rescue and recovery efforts continue after a massive tornado.

Oklahoma National Guard Airmen and rescuers go house to house looking for survivors of a massive tornado.

iReporter Jeff Lechus talks about driving to pick up his son from school as a tornado hit the area.

A dolphin located a Howell torpedo that was one of 50 produced in the 1880s. KGTV's Bob Lawrence reports.