august will be 20 years. charges murder, murder in the first. i try to be in the hobby shop as much as i can. for me, if i m not busy, i have the tendency to get if trouble. when the place opened up, i wasn t busy, i was in fights, based on beating up other people. reporter: but in the hobby shop, harrington focuses those energies on something far more delicate, an incredibly detailed dollhouse he was working on for his niece. i have been working on it two years, it s for the young girl. the young girl, she has no idea i m making it or it s coming down there. reporter: harrington gave our crew a tour of his mast sper piece. the windows here, they all work up and down, all the doors open and close, all the lights work, the doors open. all the yellow colored one is the national color of the wood. this door up here is pull downstairs, so a little doll request come upstairs, up top.