Gomez told Radio Formula the man appeared proud of the killings; there were signs he suffered a personality disorder and resented his mother and a previous girlfriend.
"What seemed macabre to me is that this person mentioned 10 cases in which he gives details, the names of the victims; he gave us the clothing they had on at the time," Gomez said. "He seemed happy about what he had done."
His companion apparently helped him lure the women but may have played a submissive role. — http://www.fox5ny.com/news/mexican-couple-may-have-killed-as-many-as-20-women_
This has all the signs of satanic Gnosticism, the mental issues of the man and the submissive assistant. The article goes on to say:
Mexico State, which borders Mexico City to the east, north and west, has suffered from waves of women's killings in recent years.
Which could certainly point to the existence of an organized cult that has probably been at work in that area for a significant amount of time.