Criminal Law Questions? Ask a Criminal Lawyer.
Unfortunately just because he is arrested on one charge, arraigned and bail posted...the DA can gather evidence of an unrelated charge or an additional charge(s) arising from the original incident. If there is probable cause, he an be arrested on new charges, arraigned and bail revisited....possible increase.
That's not so bad....probably plead out to a lesser charge if no prior record. What is the suspected second charge?