He also made no attempt to bring the criminal to justice.
Was this even against the law in the 1940s when Kinsey heard of it - let alone the 1920s when the freak actually did it?
An 1895 newspaper article lists Delaware as having the lowest age of consent at seven years, 4 have the age of ten, four at twelve, three at thirteen, and all other states at higher ages. Its not clear to what extent boys fell under these laws, but there were also laws against homosexual behavior. Some states, including Indiana, also had laws against trying to sexually arouse young people (presumably because it induced moral failings, not because of psychological damage). The court cases of the first half of the 20th century found that many of the laws were too vague and so the court could rule any number of contradicting ways. But if Kinsey had been so inclined, there certainly would have been avenues he could have pursued.