Among the stories of the May 22, 2011 tornado that devastated Joplin, Missouri, are incredible heroism as the staff of St. John’s Regional Hospital scrambled to protect patients who could not be moved to safety — and of the scores of shoppers caught inside a Walmart as the twister churned into the city’s northside business district.

But this short video clip, showing terrible devastation, also has a touch of tenderness — as an unknown police officer working in the rubble finds a little grey kitten.