kiss on the forehead. >> reporter: after working out, like clockwork, he always went straight to his job as a physical therapy supervisor. he and linda usually texted soon after. but when linda sent him a message that morning -- >> i didn't get a response. and normally, tom's very good at responding. i was gettin' a little concerned. but, you know, maybe he's in a meeting, maybe he's, you know, whatever, he's tied up. >> reporter: she wasn't really worried until her phone rang. it was a friend of tom's named gil. >> i got a phone call from gil saying "have you heard from tom?" and i said, "no. have you heard from tom?" and he said, "no, but he didn't show up at work. >> reporter: what's going through your mind? is there concern or just, oh, maybe he's at the gym? >> tom would never miss a morning of work. >> reporter: linda jumped in her car to to retrace her husband's steps, hoping to find him. she never imagined that search would lead where it did. when we come back, linda's