Sons bully put food in dirty toilet

Location: Pittsburgh PA. My son 14(m) was sent home early due to vomitting and diahhrea yesterday morning. He then tells me his class bully put apple slices in the toilet about 12 hours prior to him becoming ill and Gave them to my son. Did not tell my son they were submerged in a dirty toilet til after he ate the food. The school is aware and they are actually the ones who were able to confirm it happened. They confirmed the identity of the student as well. The school is super apologetic and nervous as I am sure this is quite serious? Can I press charges against this boy who did this? Is the school liable somehow? I’ve already made sure to have everything in writing. Correspondence from the school, drs notes and text results. This is super illegal right?!? I do have a lawyer on standbys but I don’t want to go nuclear. Yet. Please let me know if I left any details out.

Author: IslandAmazing6681