CLEVELAND - Ohio Attorney General Mike DeWine said an analysis of DNA from all three Castro brothers found they aren't linked to other crimes.
DeWine said a comparison of Ariel Castro's DNA to the state and nationwide pools of DNA profiles returned no matches.
The FBI ran the nationwide Combined DNA Index System (CODIS) search on Ariel Castro Monday morning, comparing the Cleveland kidnapping suspect's DNA to every DNA sample previously submitted to the system.
DNA samples from Ariel's brothers, Pedro and Onil Castro, were also tested and compared to the state and national CODIS submissions. No matches were returned.
On May 6, three women -- Gina DeJesus, Michelle Knight and Amanda Berry -- were rescued by neighbors from a west side Cleveland home. Ariel Castro and his brothers were arrested, but only Ariel has been charged in the case with multiple kidnapping and rape counts. His bond is $8 million.