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DEFOREST, Wis. — A 44-year-old woman from the Chicago suburbs has died after she was shot on a Wisconsin highway Sunday afternoon as her family returned from a trip to Wisconsin Dells.

“We are sad to announce just days before Mother’s Day the passing of Tracy Czaczkowski,” the US Drug Enforcement Agency said in a statement.  According to the statement, Tracy’s husband has worked for the DEA for 11 years. Tracy was also the mother of two young children. Tracy’s husband and children were not injured in the shooting.

Police responded to a 911 call of a drive-by shooting on Interstate 90-94 near mile marker 95 around 3 p.m. Sunday near Deforest, Wis.

Police say Tracy’s 43-year-old husband was driving her and their children eastbound on I-90/94 back to their Buffalo Grove home from the Wisconsin Dells area.

Their vehicle was passing a Chevrolet Blazer when the driver of the Blazer rolled down his window and fired three rounds into the vehicle.

The first round struck the passenger side door. The second entered the front passenger window and struck the Tracy in the neck.

As Tracy’s husband was slowing down to pull over, a third round was fired into the hood of his vehicle. He then pulled over and rendered aid to his wife until EMS units arrived on scene, police say. She was then taken to the hospital.

The Blazer continued eastbound on I-90/94 with a witness following it. It was intercepted by police using road spikes. The driver of that vehicle, who has been identified as 20-year-old Zachary T. Hays from West Allis, Wis., exited the vehicle and approached police armed with a hand gun.

“Despite verbal commands to stop, the suspect continued to advance toward law enforcement and two Columbia County deputies shot the suspect,” officials said in a statement.

The suspect was taken to the hospital. His injuries were not life-threatening. Two other passengers in the vehicle are in custody.

Authorities say the I-94 shooting was the second of two shootings on Sunday. Earlier, at about 7 a.m. in West Allis, the Hays allegedly shot and killed a 42-year-old man in his apartment building.

Hays’s, 30-year-old Jeremy A. Hays, who was also in the car, is being held on a tentative charge of Felon in Possession of a Firearm. A second 34-year-old brother is not being named due to his cognitive disability.

Charges against the shooter could be filed Tuesday. Police have not indicated a motive in the shootings.

The investigation remains ongoing. Anyone with any information is asked to contact Wisconsin authorities at 608-284-6900.

The statement from the DEA also states:

“The family would like to say thank you for the prayers and out pouring of support for Tracy. Funeral arrangements will be announced at a later time. Those wishing to assist the children with future needs such as education are asked to visit their go fund me page at under the Czaczkowski Family Fund.”

You can find the GoFundMe page here.