(WXYZ) - The FBI says they a have taken a man into custody for sprinkling substances on food in grocery stores.
Officials now say the man possibly struck multiple stores. They include the Whole Foods on W. Eisenhower Parkway, the Meijer on Ann Arbor-Saline Road and the Plum Market on North Maple.
Originally, the man was only thought to have contaminated food at the Whole Foods.
Officials say the man, who has reportedly confessed, was identified by tips from the public.
The FBI also says they have identified the substance as a mixture of hand cleaner, water and Tomcat mice poison, which was sprinkled on produce at the stores.
Officials say in his confession, the suspect said he sprayed the produce within the last two weeks.
The investigation is ongoing and, officials say, the suspect has said he visited other stores in the Ann Arbor area over the last few months...
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