After a year of Enríquez operating clandestinely, Pinochet's secret police, the DINA, discovered his safe-house in the working class district of San Miguel in Santiago. On October 5, 1974 his house was surrounded by DINA agents backed by heavily armed security forces personnel with an armored personnel carrier and a helicopter. He was wounded in the beginning of the assault covering the retreat of his pregnant wife (Carmen Castillo, also wounded) and two other men that fled. He received ten bullet wounds, including one to the head.