deserted construction flootded the new neighborhoodeds surrounded it. it's when the company returned to the site to fix the runoff problem that they inadvertently brought the bones to the surface where five months later those bones were discovered by christine ross and her dog ruka. >> you look at how many things had to have happened for these victims to be locateded. the development at first, the housing downturn after that, the fact the company leaves a big rainstorm comes, unearths certain things and now we locate these victims. >> so you got lucky. >> yes. >> very. >> by late february 2009, commander paul fiest and his small army of crime scene investigators and volunteers weren't feeling very lucky at all. they had literally spent weeks in the trenches looking for bones at that abandoned construction site. >>t is a l of shovnd pick work, a lot of sifting and actually in the dirt. >> two women on ida lopez's list had already been identified