love with. >> on january 2nd, 2013, 4 1/2 years after the slaughter of travis alexander, the prosecutor opened the first-degree murder trial of jodi arias by talking about a love that had gone very, very wrong. >> she rewarded that love by sticking a knife in his chest. >> ron martinez laid out his case for jodi's guilt, as detectives, technicians, and analysts one by one took the stand and connected jodi to the crime. her hair and dna at the scene. >> so this hair that you examined, would it not match? >> the root matched jodi arias. >> a crime scene specialist testified she found jodi's bloody handprint on the wall. 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. >> and this is what we're looking at in this photograph? >> while it's still in the wall,