you're recently received awful news

A few years ago, you founded a company that manufactures meatless burgers.Your product is now sold in stores worldwide.But you're recently received awful news:three unrelated people in one city died after eating your burgers.The police concluded that a criminal targeted your brand,injecting poison into your product in at least two grocery stores.The culprit used an ultrafine instrument that left no trace on the packaging,making it impossible to determine which products were compromised.