Sahan Journal asked the Department of Homeland Security what role Mancillas serves in Border Patrol, but the department declined to answer. About 3,000 Border Patrol agents and agents from Immigration and Customs Enforcement have been deployed to the region in recent weeks. On Saturday, Border Patrol agents fatally shot Alex Pretti, 37, who had been filming them in public. Video of the killing showed an agent removing a firearm from Pretti’s waistband before agents shot him in the back several times. The Pretti killing, in particular, has prompted a wave of backlash that resulted in the ouster of Border Patrol Commander-at-Large Greg Bovino.