Authorities in Illinois, North Carolina, and Tennessee are asking for the public's help in locating a missing special education teacher and two girls - ages 10 and 13 - who vanished within the last year. Linda Brown, 53, was last seen on Saturday, January 3, leaving her Chicago home for an acupuncture appointment she never showed up for, according to her husband, Antwon Brown. "The hours ... went past" and at "around 1:30, 2 p.m., I'm starting to wonder, like, 'What's going on?'" said the concerned husband.