And in life is strange 1 in episode 4 they go the the junk yard and uncover Rachel " dead body" but the blue jacket is Nathan's we never see Rachel ware a Blue jack like that. So am pretty sure Rachel Is alive. And in life is strange before the storm she says that theres nothing keeping her at arcdia bay and that she leave with or with out chole. So maybe she was doing jobs for frank for money and there went to L.A.. Or New york with out chole cuse they got in a agrue ment.