marine dimas pinzon jumps into the path of danger and saves the man's life.t was going through your mind? >> the first thing was get him to safety. i jumped on to the tracks. >> reporter: pinzon said he had no idea when the next train would come through. >> was there ever a moment of hesitation? >> once i realized he was not responsive. i grabbed his arm and got his arms up on the platform and two gentlemen helped. >> mr. pin dispon knew what to -- pinzon knew what to do because his father in the 1950s worked for the metro system and taught hem -- him how they worked and the dangers. >> he would take me in the tunnels. he would tell me where to go, what to touch. he pointed to the third rail. don't ever touch that. >> an important lesson. that third rail carries 750 volts of deadly electricity. >> did you learn anything about yourself? >> that i'm nuts. thought about would i do it again. i've been asked that question, would i do it again. you know of know what you're going to do until you do it. >> pinzon has not spoken to the man who rescued him but has told

pinzon knew what to do because his father worked for the new york metro system and his father thought all about how the subways work and the dangers out there on the tracks. >> he used to take me down into the tunnels. he would tell me what to touch and not to touch. he would point at the third rail, don't carry that rail. >> that rail carries 750 bolts of electricity. >> reporter: did you learn anything about yourself through this experience? >> that i'm nuts. i have been asked, would you do it again. you don't know what you're going to do until you do it. >> reporter: adam may, wjz news. >> reporter: pinzon has not talked to the man he has rescued, but the man has told others that he is grateful. >>> and >>> goodbye e-mail, hello facebook's new messaging system. mike zuckerburg revealed the new messaging system. they will be organized by the person sending them whether by text, instant message or e- mail. a user can respond by clicking on a friend's name and it'll be sent by the friend's preferred message. >>> what do lady gaga, glen beck and the chilean miners all have in common? t