ex-girlfriend, melissa monroe. >> we tell her they're there about seth. eventually they take her back to the police station. they show her the same pictures and they say to her, who is this in. >> the left photograph is pablo aybar. and the right photograph is seth. >> melissa monroe had also seen seth and pablo together together at casey's bar the morning of the murders. >> i saw them at caseys on the sunday, well, saturday night, sunday morning. i talked to them when i was on the dance floor. seth kept asking me to dance. >> you had all of these witnesses that corroborated and connect ed seth and pablo to mr. butch casey, the tech nine gun and his car. >> seth, a high school dropout with a previous robbery to his name soon learned he was wanted for murder. >> i actually seen all this