Campaigns/Missions & Other SPOILER Questions.

[Trane14]

Ok so here is the situation:The mission that you have to talk with Murdoc but first you have to meet that stranger in Oxnard.When i met him it was okay but when i had to met the other one in Santa Barbara i find the place but every time i go there he isn't there and my current mission is this one please help i really want to pass all of the missions on Rig'N'Roll !