An investigation is underway after a rock reportedly thrown from a Vienna Township, Michigan, overpass crashed through a car’s windshield and killed the passenger.

The Genesee County Sheriff’s Office said they are investigating Wednesday night’s incident as a “potential homicide.” Kenneth Andrew White, 32, died as he was traveling south on I-75 and the rock struck the vehicle. Four drivers told officers that they also crashed into large rocks on the interstate, which police believe were taken from another location, according to The Detroit News.

“We have a family here,” Genesee County Undersheriff Chris Swanson told WDIV. “This guy’s got a fiancee. He’s got a child. He’s on his way back from a hard day’s work and out of the blue comes a rock and he loses his life. We want to find out who’s responsible for this.”

MLive.com reported that White was pronounced dead at a local hospital. The victim’s fiancee, Amy Cagle, said she was the one who informed their 5-year-old son that his father was killed while heading home from work.

“He was a good man and a good father,” Cagle told WDIV.

“He took away a child’s father, and the love of my life. His stupid act took away a life.”

WEYI reported Thursday that Crime Stoppers is offering up to $2,500 to anyone who provides information that leads to an arrest in this case.

This is an ongoing investigation. Anyone with information relevant to Wednesday’s incident, including any footage taken between 7 and 8:30 p.m., is urged to call the Genesee County Sheriff’s Office at 810-257-3422 or Crime Stoppers at 1-800-422-JAIL.

[Featured Image: Genesee County Sheriff’s Office]