Indiana State police renew calls for tips as the fourth anniversary of 2 teenagers being killed in Delphi, Indiana approaches. Mother of Libby German, Carrie Timmons on keeping the hunt alive for her daughter's killer. A man being eyed in the unsolved 2017 murders of two teens in Delphi, Indiana, has an "evil streak" and is "absolutely capable" of committing that type of crime, his brother said. James Brian Chadwell, 42, appeared on the radar of investigators after his arrest last month in a separate incident that involved the alleged kidnapping, sexual assault and attempted murder of a 9-year-old girl in Lafayette. Following Chadwell’s arrest, Carroll County Sheriff Tobe Leazenby told local news outlets that authorities are "looking into him" regarding the 2017 murders of Libby German, 14, and Abby Williams, 13, at the Delphi Historic Trails. No further details were provided at the time.