. >> reporter: for "nightline," this is dan harris. >> and jack hoffman, that police detective, he didn't respond to our requests for a comment. the story of how the adam walsh case was finally closed is told in a new book "bringing adam home," co-authored by joe matthew. thanks to dan harris for that report. >>> coming up next, let's lightning up. 16 1/2 pounds. that's how much a mac computer weighed in 1986. coming up, today they're making them a little lighter. we'll have appleby the numbers. e 50 - 90% on great daily deals all over town. vo: they're going to discover new... restaurants, spas, museums, famous people, helicopter rides juggling classes a different kind of juggling classes concerts, yoga studios, theatre golf, lessons, more lessons, movie tickets and a whole lot more. end vo: if your week doesn't sound quite that exciting, maybe you want to sign up for ours. groupon.com [music playing] confidence available in color. depend® colors for women. looks and fits like underwear. protects like nothing else. depend®. good morning. great day. um, i thought this was going well for a