Well--the awful truth is that this sort of sordid behavior has gone on since probably the beginning of time. There have certainly been documented cases of this kind of activity right here in the good ole USA that did not involve aliens--illegal or otherwise. Sad to say, but red blooded Americans are capable of doing this, and have in the past and will continue to do so in the future.
Who knows how wide-spread it is? Thanks goodness, it seems to be a rare event--but then, how much of it is never discovered?
Of course, our "open borders" make it much more prevalent, apparently. May everyone ever participating in any way with this heinous activity rot in hell for all eternity! And may these pitiful victims of these people find justice and everlasting peace.
Well the open borders policy certainly exacerbates all types of organized criminal activity, because the "hands off illegals" sanctuary policy of our major cities allows them to operate freely without investigation, and also allows the principals to skip back and forth to avoid prosecution when the heat is too high. There are something like 300 murderers of Americans living freely in Mexico today, thumbing their nose at the law and their victims. Why worry about any American laws, when you know that a fast run for the border is all it takes to avoid paying for your crimes if worst comest to worst?