- Victor failed to stop Jesse from killing Gale
- Victor was seen at Gale's crime scene, so he could be arrested, and could possibly rat on Gus (Gus hates loose ends)
- Gus wanted to show Jesse and Walt that he was willing to kill anyone who he didn't actually NEED. And to simply scare them into obedience
gus kills victor for a few different reasons. 1) he doesn't need another cook and victor was sticking his nose where it didn't belong 2) Gus wanted to make an example of victor for these actions. 3) he wanted to scare walter ad jesse shitless
He did it to get a point across to Walt and Jesse.
I think he killed him o scare the poop out of walt and jess...or because he was disrespecting gus? maybe? I think just to scare them.
