Lets say our Jedi in question lashes out at a Hutt in anger with their saber, inflicting a serious wound and netting themselves 7 conflict in the process. Now, the NPC slot rolls around, the hutt says "to hell with this!" and throws up his hands. The Jedi, still honked off, kills the hutt - we'll call that 10 conflict. Since it's the same rage, the same act - what would you do for the conflict? 17? Just 10? something in between?

Normally I would say only the latest modifiers on a "damage" morality scale stick. So wounding someone would be replaced with cold blooded murder.

That being said, any modifiers on the state of mind would also apply. Flying into a furious rage (angers fine to have, but this is a step up) while assaulting would generate some conflict, and it might also be resorting to violence first, and if he's actually innocent (few hutts are but still) then it might be another modifer, otherwise willingly killing w prisoner/ unarmed is quite a slice of conflict.

So it would work out as

Murder of prisoner :10

Anger/rage: 1-4

Intent 3-5

For that particular act just 10 though

Lets say our Jedi in question lashes out at a Hutt in anger with their saber, inflicting a serious wound and netting themselves 7 conflict in the process. Now, the NPC slot rolls around, the hutt says "to hell with this!" and throws up his hands. The Jedi, still honked off, kills the hutt - we'll call that 10 conflict. Since it's the same rage, the same act - what would you do for the conflict? 17? Just 10? something in between?

I'd go with 17 conflict, partly as it's two separate actions, so the character has had time to think about it and consider the ramifications of killing someone that's no longer fighting back.

Attacking in anger is bad enough, but letting that anger consume you to the point you kill someone that's surrendered and at your mercy? Oh yeah, Palpatine is having such a fit of giggles that even the Joker is giving him a WTF? look.

Consider as a comparison Anakin vs. Dooku in RotS. Anakin is drawing on his anger (likely earning a bit of conflict for drawing on his aggression) and eventually defeats Count Dooku, robbing the man of his hands and lightsaber, pretty much putting the Sith Lord at his mercy. Anakin stops, knows that murdering Dooku in this instance is wrong; the man's been defeated and is totally at the Jedi's mercy. Yet after Palps goads Anakin, the young Jedi takes a major step on his path to becoming a Sith Lord by executing Dooku, and even admits right after the act that he shouldn't have done that, with Palps being very quick to provide Anakin an easy justification to soothe his conscience (and draw the young Jedi further into the dark side).