His crimes had many similarities to those of the American homosexual serial killers John Wayne Gacy and Robert Berdella the motive being a little different: Gacy murdered his victims due to a repression of his own homosexuality that he projected towards others (he was attracted to them, which he blamed them for) and berdella to vent his frustration on his victims. In contrast, Marroquín, although his crimes also had marked homoerotic features (Marroquín himself declared not to be homosexual), you can see in him a sociopath or psychopath within a framework socio-cultural that, in one way or another, gave him a showcase for its contained violence, directing it towards a minority.