LauraAnne, thanks for the clarification on Chrystina's residence. The Google search I had listed her address on Foster Avenue, which appears to be on the other side of Huntington. Your information about her living on Madison Avenue makes more sense since it's only a block or two away from where she was last seen.
According to a Huntington media source, Mary Judd-Cooper and Rocco Cooper, Chrystina's sister and brother-in-law, were both convicted of fatally beating an elderly person in 2016.
Mary Judd-Cooper sentenced
Mary Judd-Cooper passed away in 2020.
Obituary for Mary Judd-Cooper
Neither of these events may have a direct connection to Chrystina Judd's disappearance, but they do indicate family members close to Chrystina had criminal backgrounds.