The Walking Dead: A New Frontier: Episode 3 - Above the Law shows that David isn't the only leader of the community, he is actually one of four people who make all the decisions. While David immediately brings Kate and young Jacob into the walls, Javier and the rest of their group are shunted into quarantine where they can be watched and examined to make sure no one is bitten.
It's then that the group finally gets a chance to talk about the situation they are in. Given that Javier's brother is high up on the New Frontier chain-of-command, some members of the Prescott survivors have become a little suspicious of Javier. Even when Javier has everyone calmed down, the questions then turn towards David's involvement in the Prescott raid, whether the man can be trusted, and if there is any chance David was involved in the ambush that killed his daughter.
How you tackle these questions will influence some of your traveling buddies, but David soon shows up and calls Javier to meet the other leaders and try to convince them to let the Prescott survivors stay. More choices are presented to you as these events play out. Exactly how you question David concerning the raid and if you follow his lead when talking with the other Richmond heads can have subtle changes in the way dialogue unfolds, but the major events will play out as they must so that the group can have some interesting revelations about Richmond and New Frontier - revelations that will put all of Javier's friends in danger and could potentially shake the very foundation of Richmond.