The Latest: Authorities ID suspect in interstate shooting

MADISON, Wis. – The Latest on an apparently random shooting along an interstate in Wisconsin that killed an Illinois woman (all times local):

3:05 p.m.

Authorities have identified a 20-year-old man suspected of shooting a woman in a random drive-by shooting along a Wisconsin interstate after killing a man in suburban Milwaukee.

The Dane County Sheriff's Office released a statement Tuesday saying Zachary Hays, of West Allis, Wisconsin, is the suspect in both incidents. No formal charges have been filed, and the sheriff's office says Hays remains hospitalized in Wisconsin.

Investigators believe Hays killed 42-year-old Gabriel Sanchez in West Allis on Sunday morning, and then hours later shot a woman when he opened fire on a family returning home to Illinois from Wisconsin. Authorities say 44-year-old Tracy Czaczkowski was shot in the neck during the apparently random drive-by shooting. Federal officials said Tuesday that she later died.

Police have said they stopped the suspect's vehicle and shot him when he emerged with a gun. He remains hospitalized at the University of Wisconsin Hospital.

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2:16 p.m.

Federal authorities say an Illinois woman has died after being shot during an apparently random drive-by shooting along a Wisconsin interstate while she was traveling with her husband and children.

The U.S. Drug Enforcement Agency released a statement Tuesday saying 44-year-old Tracy Czaczkowski has died, two days after she was shot. Her husband works for the agency.

Authorities say the family was returning to Illinois on Sunday after spending the weekend in Wisconsin when they passed a Chevrolet Blazer whose driver opened fire on their BMW sedan, hitting Czaczkowski in the neck. Police stopped the Blazer with a spike strip and shot the driver after he emerged with a gun.

The suspect's condition is unknown. Investigators believe he'd killed 42-year-old Gabriel Sanchez in suburban Milwaukee hours before the interstate shooting.