nailah franklin deserved justice.r family was ready for the trial of reginald potts. but with a largely circumstantial case, would they finally get what they wanted most, the truth? with the conclusion of "smoke and mirrors" here's keith morrison. >> for eight years, nailah franklin's family struggled through their incomplete grief. >> what really has tormented me all these yes is that thers a possibility that justice won't be done. >> there was no real forensic evidence, only circumstantial things. though according to the prosecutors, there was a whole smorgasbord of proof. that video of reginald potts with nailah the day she vanished. the video at the target store that did not show him and thus blew up his alibi. nailah's friends testified she showed them e-mails and played a voicemail in which he threatened her. >> nailah played that voicemail for them because she was so terrified and essentially, in that voicemail, he said, nailah, i'm going to have you erased, i'm going to make you disappear. >> in fact said the