Grissom: Hey, how're you doin' with Bell's bullet?
Bobby: Just confirmin' my findings, don't wanna make any mistakes.
Grissom: Does that mean you have results?
Bobby: The bullet has the right GRC's for a SIG Sauer, Adams has a Beretta, Carroll too. Davis has a Glock, so that rules them out. However both Detectives Brass and Curtis carry SIG's. Take a look.
Grissom (looking at the bullet): There's hardly any jacket left.
Bobby: Means there's almost no chance of identifying that to a specific gun.
Grissom: What if you had more time, could you do it?
Bobby: Sorry, boss. I mean, there's just no way that I can tell you who shot Officer Bell.