Now, detectives are scrambling to find out if he may have had illicit contact with other children.
Authorities received a call on January 2 about a suspicious man taking photos of the young girl. Zimmer was arrested on the spot and charged with endangering the welfare of a child and harassment.
Zimmer, a neighborhood locksmith, was convicted in 1999 of sexually assaulting a 10-year-old girl. He is a Level 2 offender.
The suspect's brother, 37-year-old Meyer Zimmer, who lives with the suspect is charged with tampering with physical evidence and hindering prosecution.
Police are asking anyone who may have had contact with Zimmer to call Crime Stoppers at 1-800-577-TIPS.
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