>> there was no observed verbal argument between the defendant and mr. de abreu, and there was no physical contact between them beyond that initial bump. >> but prosecutors say hernandez appears boiling mad on security video. later, they say, hernandez and his friend wait for de abreu and his buddies to leave the club and follow them when they drive away. aaron hernandez is now charged in two separate murder cases. there is the murder of odin lloyd and then there's this case, the murder of de abreu and furtado. it appears to be the stronger one. >> the sources of evidence are much stronger at this point than existed with the odin lloyd case. >> stronger for two reasons. first, a gun has been found. >> you have the murder weapon? >> we do. the gun was recovered in a routine traffic stop. >> the car's driver tells police