89 Caprice Classic Brake Light Problem

I have a 89 caprice classic and the brake lights don't work. I had the brake light switch replaced....still no brake lights. Checked all the fuses and bulbs all of which are fine. My trun signals, hazards, and parking lights all work, just NO brake lights. What could it possibly be???

The wire from the switch to the brake light assembly is busted somewhere along the line.