Final answer:
The FAFG has excavated several graves, with at least 113 out of 145 victims' remains unearthed so far, including graves FS 162 and FS 164 which contained twenty and at least twenty-five individuals, respectively.
Step-by-step explanation:
The Forensic Anthropology Foundation of Guatemala (FAFG) has been involved in the excavation of various communal graves, revealing numerous remains of different individuals. In the grave, FS 162, they unearthed the remains of at least twenty individuals, while the grave, FS 164, yielded a minimum of twenty-five individuals. Another grave, mentioned in the documents but not numerically quantified, added twenty-three more bodies to the total, indicating a total of 113 out of the 145 victims. These graves contain individuals of varying ages and genders, whose burial conditions suggest hasty interments and the possible presence of clothing and personal belongings such as buttons and coins, indicating that some of the bodies may have been clothed at the time of burial. The different stages of body decomposition found at the site imply that some bodies had begun decomposing elsewhere before being brought to the burial site.