. >> reporter: that's roman deleone., and there was a surprise waiting for him in the library. >> ready? 1, 2, 3. >> reporter: a school resource officer devoted to roman decided to make something on his own to help roman walk. >> go ahead. step down. you got it. >> good job, buddy. >> reporter: teachers were quietly watching as roman begins to walk. the school resource officer capturing the video. he's the one who had the idea. >> the design came into my head, i went into a home improvement store and got the pvc pipe and built the contraption in my garage. >> reporter: it's remarkable, how far he went on his own. >> all by himself. look at that. if he can get up and build his leg muscles, hopefully have the opportunity to walk or have less assistance and walk later in his life. >> reporter: his health aide and teachers walking. >> he was so proud of himself. oh, my gosh. >> every adult in the room was filled up with tears. >> reporter: tonight, roman's family sending us this. he's now walking at home, too. everyone at sc