Ingham County Sheriff Gene Wriggelsworth tells The Associated Press that authorities executed a search warrant late Monday night in Wixom, the Detroit suburb where the shootings began last month.
Wriggelsworth says authorities are "trying to confirm whether he's our guy or not."
The shootings began Oct. 16 and stretched from Oakland County west to Ingham County. The targets in the 24 reported incidents were mostly cars traveling on roads near Interstate 96. Only a handful of shootings actually occurred on the interstate.