CNN Forensic Files June 15, 2014 09:56:00
Scene. >> through the code on the beer cans, contacted the manufacturer to find out where those beer cans would have been -- what lot would they have been sold in, where was that lot sold. they tracked it down to the store. >> and that store's computerized sales system indicated a man bought the beer on the same night as the murders. >> they examined the receipts and found that this particular batch of beer was sold at this particular time. and sure enough, he had written a check for beer. >> the check was written for $19.68 by jose castillon. and what about the white washcloths? castillon wor...