GLEN ALLEN, Mo. (AP) — Authorities say five people were killed when a tornado tore through an area of rural southeastern Missouri before dawn on Wednesday. The twister caused significant destruction in and around the small communities of Glen Allen and Grassy, about 50 miles south of St. Louis. The tornado was spawned by a large storm system moving through the Midwest and South. That system was the third in a series of massive storms to strike the nation’s heartland over the past two weeks, and the storms have killed at least 65 people. Just last weekend, confirmed or suspected tornadoes in at least eight states laid waste to neighborhoods across a broad swath of the country.