Mexicans vs Lithuanians

What's the beef about? I only thing I know is that Mexi drillers have been killing Poles on sight since atleast "09 when La Raza, Aztecas, and Satan Disciples merged and took over Cicero pushing the Poles into even further exburbs. Is this just an extension of that turf war against anyone vaugley slavic or a new beef altogether?

Pic related was imporant figure in Lithuanian community and was burned alive by a Mexican driller