Lawyers for the victims say the four cases are only the "tip of the iceberg" of abuse claims against LAUSD.
Deputy District Attorney Allison Meyers discusses Springer's trial.
Former teacher Mark Berndt, charged with committing lewd acts on children, pleads not guilty.
Newly uncovered evidence fuel parents' anger at the school rocked by sex-abuse allegations.
Miramonte Elementary School is shut down Tuesday and Wednesday as the Los Angeles Unified School District replaces the entire staff.
The Director of Communications claims that there is not sufficient evidence to convict Berndt yet.