The three federal inmates suspected of attacking a militia leader in a New Mexico jail in April were in custody on immigration charges and had all been previously deported prior, according to a local report about federal documents that were released Wednesday.

The documents show Roberto Gardea-Limas, Silvano Gurrola-Hernandez, and Martin Soto-Ortega had each been previously deported from the United States and had been in custody at the Doña Ana County Detention Center in late April on varying federal charges, according to Las Cruces Sun News.