I just received information that Grimm had been convicted and jailed in 1973 on charges of assaulting a 10 year-old boy. This followed his having spent two years in prison for another assault on a young boy.
As an aside...In September of 1966, a five year-old girl was kidnapped, assaulted and killed in Sandston, a town east of Richmond.
Her name was Mary Elizabeth Wright. Her killer, Clarence E. Madison, was convicted in March of 1975.