Any speculation about the motive?
No motive announced yet.
According to a local TV station in Kansas City MO, the priest was assigned to the Parish in 2011 so has been there 13 or 14 years. Gary Hermesch grew up in Seneca and studied at some point to be a Priest, so he either reconsidered and decided not to become a priest or did not qualify academically or emotionally or had some defect or other disqualifying factor.