pickup de d'agata a daybreak in an hour-long journey in schrauben's neighborhood. where a trash truck -- >> we would have the dump truck trash in somewhat of a pile here regardless of the size. >> right on the turmeric? >> right on the tarmac. scattered everything out opened every bag. get down on our hands and knees and slowly shift through every piece of paper that looked like it might be a document of some kind. >> and that's how doug's team found this coffee stain phone bill. showing call after call from schrauben to sandra's son tom -- >> and that number tom's numbers popped up how often did a pop-up? >> i think the average we figured out was about 24 times in a building cycle in about a month. so anywhere -- from >> that's almost every day. >> yeah. it's almost like going through a crime scene in finding pieces of evidence. it's an excitement that you