welsh was a carnival worker living in the wheaton area. police says he was at the mall when the girls appear and last seen watching them. >> during that abduction and as a consequence of that abduction, lloyd welch committed the first-degree murder of those girls. >> reporter: forensic experts and police searched the remote area some 200 miles away from montgomery county. they won't say if dna testing was done as part of their investigation. last year a grand jury began hearing testimony in the case. welch is aen covictoried sex offender who's now in prison. they charged family member patricia welch. she lied to grand jury. she's now awaiting trial. kenneth craig, cbs news, new york. >>> ahead, bargain bashing. why some are complaining about amazon's prime day deals. details in "moneywatch." details in "moneywatch"." is the next 200 feet. that's how life unfolds. a leap of faith. [growl]