Perez's mother was previously arrested on drug trafficking charges along with one of the suspects arrested in connection with her daughter's disappearance, according to court records.
"So this case has these two odd things going on inside it -- a relationship between the mother and one of the abductors and is this even a logical house to break into," former FBI agent and ABC News consultant Brad Garrett said.
Court records show that Contreras-Rodriguez and the teen's mother, Maria Corral, were arrested on drug charges the same day in February 2012. In news reports at the time, police said they were busted as part of an alleged marijuana trafficking ring. The charges against the two were later dropped.