HomePeninsulaCommunity CommunityCover 4 confirmed dead after shooting this afternoon in Half Moon Bay By Pen 360 Press 2023.01.23 0 1081 FacebookTwitterPinterestWhatsApp . San Mateo County Supervisor David J. Canepa confirmed that four people were killed in shootings in Half Moon Bay on Monday. In a brief statement, the official said the murders occurred in two separate shootings.