An FBI spokeswoman says the head of the agency's office in Chicago is retiring after about seven months on the job.
The more than 20-year FBI veteran, Cory B. Nelson, assumed the post in January.
Contact information ( * required )
The spokeswoman, Joan Hyde, said in an email Thursday evening that Nelson is leaving. She didn't immediately offer details.
The Chicago office is considered one of the highest-profile FBI offices in the country, handling everything from political corruption to terrorism cases.
The 51-year-old Nelson replaced Robert Grant, who retired in September after more than seven years as the special agent in charge of the Chicago office.
Grant left to take a global-security position with Walt Disney Co. in Los Angeles.