(DETROIT) -- Police in Michigan are frantically searching for a shooter who has been randomly firing at people in their cars on a stretch of highway near Detroit.
On Saturday afternoon, a baseball fan driving along the interstate 96 corridor en route to a World Series game in Detroit was shot in his left hip.
Emily Roll, a gas station employee who witnessed the aftermath of the shooting, said that at first, the victim came limping into a gas station looking for help.
"First he said to call the cops," she said. "I thought he got robbed, but then he said I just got shot off the highway."
Only 30 minutes earlier and a mile away, another car on the interstate was hit with a bullet entering through the back window and slicing through the car. That driver was not injured.
"If somebody would have been sitting in the rear seat of the first vehicle, they'd have been hit," Livingston County Sherriff Bob Bezotte said.
Since mid-October, 24 vehicles have been hit by bullets along a stretch of I-96. Until Saturday, no one had been hurt, but authorities fear there's a serial shooter out there with deadly intentions.
Former FBI agent and ABC News consultant Brad Garrett said the seeming randomness of the shooting is perilous.
"We don't know why, but the big concern is he is anonymously shooting at cars and eventually someone is going to get killed. It is a very dangerous situation," Garrett said.
A federal and state task force has been formed to catch the shooter, and police have released a composite sketch of the suspect.
"Somebody knows this individual is out there doing this," Bezotte said. "And we encourage them to call us so we can put him in jail where he needs to be before somebody actually gets killed."
The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), the FBI and Crime Stoppers are offering $102,000 for information leading to an arrest of the suspect.
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