According to confessions gathered by Horacio Verbitsky and made by Adolfo Scilingo (later sentenced to 640 years in prison in Spain), Luis María Mendía was the architect of the "death flight"  assassination method (vuelos de la muerte) whereby the Argentine state disappeared people by throwing them out of aircraft over the ocean, thus making the retrieval of their corpses nearly impossible (and thus subsequent legal investigations unlikely).
According to confessions gathered by Horacio Verbitsky and made by Adolfo Scilingo (later sentenced to 640 years in prison in Spain), Luis María Mendía was the mastermind behind the 'death flight' assassination method (vuelos de la muerte) whereby the Argentine state eliminated people by dumping them out of aircraft over the ocean, making it virtually impossible to recover their bodies and thus hindering subsequent legal investigations.