Key stuck in the door lock (lock jammed)

[BB72CHEVKT]

I was trying to lock the door and now the key is stuck and will not return to the upright position so it can be removed. I have the door panel off and can not figure out the problem. The door lock knob will not move up or down manually or with the key. I can open the door from the inside and out side with the handle but the outside push button is not engaging the door mechanism properly. I am going to try and find the online service manual to get a better view of what is going on and what is bound up. The door latch mechanism apparently has a spring and I think that spring may be dislocated and causing the jam. Any ideas?