Parking Brake cable replacement-69 B Body

On my 69 Roadrunner the parking brake foot pedal will not depress. It is stuck in the "up" position.

Anyone have that problem before and what did you find wrong with it?

The cable on the underside and into the foot panel is not broke, so I assume some connector broke inside the brake mechanism. Before I take it apart, I thought I would post here.

Thanks in advance.
Author: dgp_naples