martinez had that part of the wall brought in to court. >> what is it? >> this is the piece of wall that was cut out and collected as item number 77-lb. >> this is what we're looking at in this photograph? >> while it's still in the wall, yes. >> perhaps the most damning evidence came from this sony camera discovered in travis' washing machine. after weeks of work, technicians restored photos once deleted. >> and with regard to the items deleted, were there some that involved mr. alexander in the show shower? >> yes. >> what made these pictures key to the case had to do with a feature built into the camera. >> these images when you take them with this camera, em beds the date and time the camera happen set on it to the file itself. >> meaning for the prosecution, those photos along with the oaf eviden other evidence told a story. that jodi showed up at travis' home around 4:00 a.m. june 4,