46 minutes agoHolly Honderich,in WashingtonDenton Fire DepartmentA building destroyed in Denton, TexasAt least 13 people have been killed as tornadoes tore across three US states, destroying homes in minutes and cutting power for hundreds of thousands.Four people were killed in Arkansas, two in Oklahoma and seven in northern Texas. Scores more were injured, and almost 500,000 across several states were without electricity.Sheriff Ray Sappington of Cook County, Texas, said the death toll there included two children aged 2 and 5 and three members of the same family.Footage from the county…