What was the root of conflict between Pachuco gangs in the 1940's?

(US History) Background (real, elaborated question below): I'm working on my group's final project for AP US History and we are going to enact a rendition of the alleged murder by Hank Leyvas and his "38th street" gang of Jose Diaz of the Downey Neighborhood gang. Again, the medical records show that the death could've been from a car, but the "Sleepy Lagoon murder" and Pachuco gang conflict is what escalated the zoot suit riots in WWII. QUESTION: Despite whether or not this conflict indeed occurred, it was just the most well known of conflicts which tainted mexican pachuco's and zooters in the eyes of western white america. I'm wondering why these conflicts emerged in the first place, what the pachuco gangs desired, and why they took the often violent actions they did. Also aside from my main question, any information about zooter and pachuco culture would be appreciated (i.e., what zoot suits meant to them, and relationships in their culture, etc.) , as well as Mexican insults of the time.