His license is permanently revoked for a series of drunk driving convictions and he’s one probation for DUI.

But that didn’t stop a Clearwater man from causing four crashes along busy U.S. 19 Tuesday morning.

It looked like a demolition derby starting at Gulf To Bay Boulevard going north and ending at State Road 590.

“It looked like mad chaos,” said witness, Mark Henson.

He saw a pickup truck driver hitting car after car. It all started when a piece of debris came flying at him.

“A large piece of plastic actually bounced off of my windshield,” said Henson.

Then there was more debris and fluid spraying from the truck’s right front side.

“As I’m sitting there watching him, he slams into the back of some woman. Just full speed,” he said.

The pickup driver, identified by Clearwater police as Jason Mizerski, hit her again.

It doesn’t stop there.

“He would be involved with one crash, wouldn’t pause, wouldn’t hesitate and just kept going. Get into another crash, and just keep going. Ya know,  four different times,” said Clearwater Police Department spokesman Rob Shaw.

One of those crashes involves a Lexus. It’s barely recognizable.

“He swerved off to the right, hit another person and made them unintentionally go flying off the exit,” said Henson.

“Had somebody been in the rear seat of that car, they likely would have been killed, “cause that car was just crunched,” said Shaw.

Henson called for help.

Mizerski finally came to a stop near the Old Coachman exit.

“He was basically, looked like a pinball going down 19 at least 60, if not 70 mph,” said Henson.

Mizerski has a long history of at least four drunk driving convictions.

“It’s pretty terrifying, I gotta be honest,” said Henson.

One of the drivers went to a hospital with serious injuries.  

Mizerski, on probation for DUI, is in jail facing 14 new charges, including 12 felonies.