watch the man in the white shirt. taking the 51-year-old woman away. that fire so devastating it left nothing but charred metal behind. scott swanstrom the driver of the 18-wheeler, devastated by the crash. it just it hits you. it hits you, you are lucky to be here. reporter: miraculously, police say the woman and toddler suffered only minor injuries. frederickson came to their aid a full two minutes before first responders arrived. life-saving time. we were just glad to be able to be there to assist, you know, so that they can see tomorrow. reporter: thanks to a moment of courage. mara schiavocampo, abc news, new york. true hero there. very much so. good for him. well, when we come back, we ve got the skinny for you. and taylor swift s brand new music. will you like it? we ll see. breaking news on the latest celebrity engagement. don t go anywhere. breaking news on the latest celebrity engagement. announcer: world news now continues after this from our abc