A 1784 love Triangle!

in 1784 Col. Garcia was stationed at St Augustine FL and brought his wife Delores. She felt unloved and began an affair with her husband's assistant Capt. Manuel Abuela. Col. Garcia found out one day from smelling her unique perfume on Capt. Abuela. They later went missing and 50 years later the remains of two individuals were found behind a brick wall. Was it Delores and Manuel?