Four On The Floor

Description for FOUR ON THE FLOOR by Ralph McInerny:

Father Dowling is called to investigate when an old man is kidnapped from the church's social center. It turns out that the victim is an ex-con who was imprisoned for embezzling from the bank where he worked as an accountant, and that his kidnappers--who may be his own sons--think he still has the loot. Then his body, riddled with seven bullets, turns up, and Father Dowling goes hunting for his killers.

This is #12 in Father Dowling series.