but zach understood, as he was turned away by the guard, that one person's anxiety could not be allowed to trump public safety, but yet at that very moment, he understood with absolute clarity he had to find out what happened to the girl behind the barricade. he had to, if she was alive or dead or injured, had to because she was the love of his life. he sent message after message by text. >> in vain. you know, knowing that they weren't going through but just hoping. you know, little messages of encouragement, "i love you, i hope everything's all right. i'm going to come look for you. i've tried. just know i'm coming." >> what were you thinking? >> i wouldn't -- i wouldn't know what i'd do without her. >> i guess that's the first time