These two killers are part of the Ciudad Juárez killers:

https://en.m.wikipedia.org/wiki/Female_homicides_in_Ciudad_Juárez

The killers enjoyed police protection and involved numerous serial murderers working together :

https://en.m.wikipedia.org/wiki/The_Ciudad_Juárez_Rebels

Here‘s a Mexican article about the case translated into English:

”Someone very powerful, with police protection, after unpunished femicide in Ciudad Juarez: experts and activists”

https://translate.googleusercontent.com/translate_c?depth=1&hl=en&nv=1&rurl=translate.google.com&sl=auto&sp=nmt4&tl=en&u=https://www.jornada.com.mx/2002/11/04/articulos/51_juarez.htm&xid=17259,15700021,15700186,15700191,15700256,15700259,15700262,15700265&usg=ALkJrhh-KW0QEGleDBtscev9h-ELjOwO9Q

...Ana Benavides? They were tied to snuff films and Mexican cartels.

https://en.m.wikipedia.org/wiki/Alejandro_Máynez

Hits all the Dave McGowan talking points.

apologies for poor formatting, getting used to phoneposting here. Cheers y’all