A Fresh Perspective on Cahokia Mounds: Mayans in Our Midst?

Since I visited Cahokia Mounds in 2012, I've been fascinated by many parallels between what I witnessed as a missionary in Guatemala and as a tourist in the Yucatan and what I saw at Cahokia. Check out this article on Cahokia Mounds. It goes into how the Cahokia civilization just up and abandoned their urban project, and for a lot of the same reasons for which Mayan civilizations abandoned their urban centers and lifestyles.

Sacred meetings and ceremonies – the city’s purpose – took place on the plazas and in buildings inside the palisade. “There was a belief that what went on on Earth also went on in the spirit world, and vice versa,” says James Brown, a professor emeritus of archaeology at Northwestern University. “So once you went inside these sacred protocols, everything had to be very precise.”

Further, the article states,

...it appears the Mississippians may have conducted ritual human sacrifices, judging by what appears to be hundreds of people, mostly young women, buried in these mass graves. Some were likely strangled; others possibly died of bloodletting. Four men were found with their heads and hands cut off; another burial pit had mostly males who had been clubbed to death.

Did post-Book of Mormon era Yucatecan Mayans travel northward across the Gulf of Mexico, or along its Western coast, to the Mississippi river and influence or even directly establish the Mississippian cultures, urban centers, and places and methods of worship and sacrifice?