unisom sleep gels. >>> number one in 60 seconds. >>> good evening. thanks for joining us. intriguing new evidence in the murder trial of former new england patriot aaron hernandez. how to shell casings and bubble gum allegedly link the former nfl star to the execution-style killing of his friend? here's abc's ron claiborne. >> reporter: key evidence from prosecutors in the aaron hernandez trial. surveillance footage at a gas station outside of boston taken 90 minutes before prosecutors say he committed murder. the video, which shows hernandez acting erratically, seeming to dance at the gas station. where he buys blue bubble gum which investigators say could link him to the crime. it's just the latest in a mounting series of caught on camera moments the prosecution has shown jurors to build a timeline in their murder case against the former nfl star aaron hernandez. >> orchestrated or participated in the killing, covered up the killing -- >> reporter: earlier this month hernandez's former teammates celebrating football's greatest victory, the new england patriots super bowl

unisom sleep gels. >>> number one in 60 seconds. in our house, we do just about everything online. and our old internet just wasn't cutting it. so i switched us from u-verse to xfinity. they have the fastest, most reliable internet. which is perfect for me, because i think everything should just work. works? works. works! works? works. works. >>> good evening. thanks for joining us. intriguing new evidence in the murder trial of former new england patriot aaron hernandez. how to shell casings and bubble gum allegedly link the former nfl star to the execution-style killing of his friend? here's abc's ron claiborne. >> reporter: key evidence from prosecutors in the aaron hernandez trial. surveillance footage at a gas station outside of boston taken 90 minutes before prosecutors say he committed murder. the video, which shows hernandez acting erratically, seeming to dance at the gas station. where he buys blue bubble gum which investigators say could link him to the crime. it's just the latest in a mounting series of caught on camera moments the prosecution has shown jurors to build a