hobby shop in alaska. >> tell me your first and last name. >> patrick harrington. >> patrick harrington. >> yes. i've been in this prison since june 1998. august will be 20 years. charged with 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 a tendency to get in trouble. when the place first opened up i wasn't really busy. i was in fights, basically beating up other people. >> but in the hobby shop harrington focuses those energies on something far more delicate. an incredibly detailed dollhouse he is building for his niece. >> i've been working on this doll house for two years and it's for that young girl. she has no idea i'm making it and no idea it's coming down there. >> harrington gave them a tour of the masterpiece. the windows here, they all work, up and down. all of the doors open and close. all of the lights work. >> the doors open.