Stuck Lock?

Hi all. My first real post here, but I've been lurking for over a year. I look forward to participating here.

My issue has started out as my outside door handle quit working. I was able to open from the inside and the window operated properly. Then the window jammed and the door wouldn't open at all. I got a slim Jim and got it open to find that the bar going from the latch up to the outside handle had come loose. It was also interfering with the regulator. I was able to reattach it and secure it with a retaining clip. Last evening it seemed like it worked, but it was getting dark.

Today I put the panel back in place and tested it. The door is locked and the lock bar only has about 1/4 inch of travel. The problem appears to be in the lock. The window is no longer impeded. Ideas?

Also my doors really rattle. The issue appears to be in the latches as the hinges seem solid with no give. Are the latches serviceable or adjustable? Thanks