I hope somebody posts another one with more of the background.
Makes it a little pictorially clearer how impossible it would be for an old man to slip away from a procession crowd, de-vest, abuse two teenage choir members in a bustling, open sacristy with people criss-crossing to and fro, re-vest and get back to the front doors --- unnoticed at that. And--- according to the accuser's timeline ---IN SIX MINUTES. And the two drunk choristers both made it to choir practice on time, which was to start "immediately" after Mass.