The suspect and the child were found in Charlotte with the help of Flock cameras, the sheriff said.
According to campus police, 21-year-old Ashton Boone, of Henderson, was accused of multiple secret-peeping incidents at three different dorms in March.
Aron Newsome was taken into custody and made a court appearance on Monday.
The victim's ear was severely damaged in the attack at a home in Henderson.
Authorities confirmed the two were siblings.
The SBI said Wednesday that Brianna Keele Anderson was charged with three felony counts of embezzlement of taxes by officer.