even ernie's own family unanimously turned against him, including ernest shearer sr., ernie's grandfathero took the stand on his 95th birthday to testify against his own grandson. his namesake. and once again, adrienne had a date to see ernie in court. they asked you to testify. >> they did. it was overwhelming and terrifying. >> reporter: adrienne told the jury about ernie's two years of deception, the double life, all of those lies. >> i made it a point not to look at him during the entire time i was in the room and during the entire testimony. >> reporter: was it enough for the jury? ernie's defense jumped to its task. arguing that the evidence, the red chevy camaro on the surveillance video, the dead cell phone around the time of the murders, asking his friends to buy a gun? all of that could have been simply coincidence. it could be explained away. and besides, said the defense, there was actual physical evidence to prove someone other than ernie committed the crime. that speck of unidentified dna found in one of those bloody shoe prints at the crime scene. the prosecution argued it