Zinc acetic acid is a reducing agent.
Oxidising agents cannot be used to destroy the ozonide, as it is itself an oxidizing agent.
Some oxidising agents are dichromate, hypervalent iodine compounds, oxygen, ozone, conc. nitric acid, perchlorates, perorates, etc.
Br2/UV will brominate the aromatic ring. NBS is used for bromination of the side chains. Some aromatic bromination may occur but it will be very small amounts.