Initially cast into a deep well with others that was dynamited, albeit poorly. This allowed some remains to be eventually recovered, moved several times and finally interred in a tomb at the Parish Church of St. Jerome, Municipality of Gualaco, Olancho, Honduras. I understand this is where the tomb is located.
Confirmed by Dr. Michael Gable.
St. Jerome Catholic church in Gualaco, Olancho, Honduras
The people of Olancho erected a marble tomb in the parish church and a painting of Fr. Casimir has been created in his memory.
Father Patrick Greenough, OFM Conv is on the right.
2 Corinthians 4:8-9
8 We are hard-pressed on every side, yet not crushed; we are perplexed, but not in despair;
9 persecuted, but not forsaken; struck down, but not destroyed—