A Brookfield man has died after a crash in Jefferson County when a piece of debris went through the windshield.
Wisconsin State Patrol says it happened on I-94 near Johnson Creek shortly after 5 p.m. Monday.
The investigation shows a piece of a semi's brake system came off and went through the windshield of a vehicle hitting 51-year-old Jay Winton Tichelaar in the head. Tichelaar died at the scene.
Authorities are still searching for the semi involved incident but have yet to locate the truck or the driver.
The investigation is ongoing.
For more on this story: http://www.wkow.com/story/35491870/2017/05/22/update-driver-killed-by-debris-on-i-94-identified