Osvaldo Romo became known in working-class neighborhoods before
Pinochet's coup in 1973 as a leftist activist, member of the
Popular Socialist Union (USOPO) and
MIR sympathizer. Following the coup, he reappeared in these neighborhoods in a military uniform, arresting his friends and contacts. There are still debates in left-wing circles over whether Romo suddenly changed his political orientation or if he had always been a
mole for the Chilean security services. Known as
Guatón Romo ("Fatso Romo") or
Comandante Raúl, he was one of DINA's key
torturers, operating in centers such as
Villa Grimaldi. On April 11, 1995, in an interview televised by
Univisión, he commented in great detail, and evidently without remorse, on the techniques that had been used in the centers. These included the application of electricity to women's nipples and genitals, the use of dogs, and insertion of rats into women's vaginas. ==Life in Brazil and arrest==