 But it was his vigilante activities outside of the ring that made him a legend amongst the communities of South Texas.Agustin's incarnation of El Gato Negro has become so much a part of the local folklore that few even acknowledge his existence, referring to him as a ""fairy tale"".His motives soon changed however, as he decided to use his talents to fight the criminal element that plagued South Texas.Agustin later retired the alter ego in the late '60s, only for his grandson to adopt it three decades later.