Blew fuse. Wont crank.

I was driving and flipped the heat on and something blew. I've checked every fuse and cant find one thats blown.

Head lights, tail lights, turning signals work.
Radio, cab light, and ignition does not work.

As it was rolling to a stop, i attempted to roll start it by dumping the clutch. Nothing.

Like i said, i visually checked all of my fuses, and they all look fine.

Any suggestions? Thanks.

Check the fusible links in the little black/grey box on the drivers side inner fender.

Ive killed the battery on my truck a couple times now. And have also attempted to roll start it in reverse and 1st gear. And nothing happens.