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If the school has not enforced the anti-bullying policy
as they are required to do by the CA state laws, then you could have sued them for non-enforcement of the policy as required and sought damages for that. However, you did not file suit at the time and the school did finally take action and the statute of limitations
was 1 year, which has expired I am sorry to state.
As far as the award ceremonies, I am afraid that would not give rise to a cause of action against the school at this point, because while you asked the school for him not to attend because of his fragile ego, the school was not obligated to provide any reasonable accommodation unless you made a written request under the Americans With Disabilities Act with proof of his medical reports from his doctor explaining his condition and why being excused from these ceremonies would be reasonable to accommodate his mental health disability (this type of stress is considered a disability).
However, what you can do is take action now to make the school accommodate him in the future and set yourself up for suing them in the future if they refuse to comply. You need to start with a report from the doctor describing his disability and how it permanently impairs a major life function for your son and to describe what accommodations your son requires in school to continue attendance. Then you need to take that report and file a written request for a reasonable accommodation with the school under the Americans with Disabilities Act and also under the Individuals with Disabilities in Education Act and ask the court to put in place an IEP or 504 plan to accommodate your son's disability as they are required to do by law.
If the school refuses your request, THEN you can indeed sue them for violation of his rights under the ADA and IDEA.
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