I wrecked a company truck - employer threatening to sue

So I was driving a gravel truck had to hit brakes hard because of car stopped in front of me and the truck jacked knife in to the ditch and burned to the ground.

My employer on had liability insurance and is out like thirty grand. I was at fault for the wreck. My employer told me on the phone that he does not owe me a dime ( he owes about $1600) and he said that he is going to sue me for negligence of the driver.

Can he do that ? Not pay me and sue me