Something So Divine — J.R. Lindermuth

When a young girl is found murdered in a Pennsylvania rye field in the autumn of 1897, Ned Gebhardt, a feeble-minded youth known to have stalked the victim, is the prime suspect. Incidents involving another girl and gossip stir emotions to a frenzy, nearly leading to a lynching.

Evidence against Ned is circumstantial and there are other suspects. Influenced by the opinions of Ned's stepsister and Ellen, a woman who has perked his interest, Simon Roth, the investigator, is inclined to give Ned benefit of the doubt. Then he discovers damaging evidence.

Still unwilling to view Ned as a cold-blooded killer, Roth puts his job and reputation in jeopardy as he seeks to assure a fair trial for the accused.