Your family should contact an attorney in your local area immediately. It is very concerning that the "court found him guilty" on the day of the hearing. Perhaps the court was concerned as to whether he was a flight risk and posted a high bond.
Usually criminal cases take some time to work through the court system. Unless he pled guilty at his arraignment (and it would be critical to know if he was represented by an attorney), it is not clear as to why the court found him guilty. Again, the most prudent course of action is to contact counsel in your area. You may be able to locate such an attorney at attorneypages.com. If you are in the central Ohio area, visit our website www.jmoserlaw.com. Good luck.