I've got a 2000 Volvo V70 SE that i recently purchased and noticed that the rear passenger side door wont open. I was able to remove the door panel but I am still unable to get that door open all the other doors open fine from both inside and out. However the rear passenger side door wont open from either the inside or outside.

 

There is a red tab on the latch body, bump it with a screwdriver and it should unjam the latch.