What the decision was can be stated clearly. Alternate translation: "with either the Council's decision to kill Jesus or with their action in killing him" (See: [[rc://en/ta/man/translate/figs-explicit]])
Here "Judean town" means it was located in Judea. Alternate translation: "the town called Arimathea, which is in Judea" (See: [[rc://en/ta/man/translate/translate-names]])