I m doing King's Gambit quest.

i chose to kill pacer by reverse-pickpocket a plasma grenade to him in order to frame the Van Graff family, but it didnt work and all the kings turned hostile.

now i want to do the quest in the peaceful way, but there is no dialogue from Ambassador Crocker to change the option.

I have no idea how to finish the quest because i dont want to just kill pacer and get infamy from freeside.

can anyone help?? thank you

You can use the Kings favour to peacefully resolve the problem ?

First you have talk to the King and here him say no. then return to Crocker to tell him you don't want to do the assassination route, then he'll direct to to talk with either Hsu or Moore. (talk to Hsu).

Or go here http://fallout.wikia.com/wiki/Kings%27_Gambit for all the various methods

thank you, i got it.