>> so, on to the scientific evidence, the cell phone first. lawyer fleisher found a mistake and a chart that states expert had. use was the expert analysis, in fact, sloppy? >> if you are such a hot shot expert, how did this air happen? >> he said, oh well it was a mistake. >> the same for the dna evidence. attack the credibility of the analysis. the defense said that dna results were turned within a few days were rushed through the police lab because of rothstein's connections. >> attorney fleisher also suggested there could've been cross contamination to tilt the scale, so the results pointed at tony. >> our goal was to educate the jury on the rothstein connections and the rothstein influence. >> and metal with physical evidence, contaminated, maybe? >> we can only speculate. but when a man is as powerful a guy as rothstein was, people would think that they could do things. they can conjure a beanie. >> and use it to frame tony