Another tornado death in Greensburg, Kansas.This one, a police officer rushing to warn residents.The twister crushing his squad car, flinging it across the field.He was taken off life support Tuesday.

• 在肯萨斯州格林堡又发生一起由龙卷风造成的死亡事故.；这次不幸轮到了一名匆忙赶去警告居民龙卷风来袭的警官