KNTV NBC Nightly News With Lester Holt September 12, 2019 09:18:00
Out a pocket-type folding knife. >> after he stabbed his co-worker, upon leaving several employees armed themselves with whatever they could and tried to engage him >> reporter: law enforcement officials credit the employees with detaining brown until the arrived less than five minutes after receiving the first call. lester >> ron mott, thank you. in sioux falls, south dakota officials say human error was the reason warning sirens failed to go off before a series of devastating tornadoes, damaging dozens of buildings. remarkably, nobody was killed by the three twisters that ha winds up to 13...