OAKLAND, Calif. (KGO) -- Another disturbing headline about the shooting in Oakland comes from the ABC7 I-Team, law enforcement sources tell us school officials have sent text messages to shooting victims, instructing them not to cooperate with police.We're hearing it's a pattern, and some parents at the school are worried that a lack of action by school officials after previous incidents may have led to this escalation in violence.VIDEO: Oakland school shooting likely gang-related with at least 2 shooters, police say; 2 student victimsLaw enforcement sources tell the I-Team, Oakland police investigators have obtained text messages from the shooting victims' phones in which Rudsdale school officials tell them not to cooperate with police.During a virtual news conference, the I-Team's Dan Noyes asked Oakland Police Chief LeRonne Armstrong about that information.RELATED: Oakland police making changes to crack down on gun violence after 9 killed in 9 days"If you remember, the school district used to have their own police, then OPD was serving some of the schools with campuses, they actually threw him out because they didn't want uniformed police officers on their campuses, these things happen because we allow them to happen," said De La Fuente."