 A 45-year-old Eastside man is believed to have died from fireworks-related injuries. Redmond Police found him unconscious and not breathing in front of a business in the 11,500 block of Avondale Road around 2.30 this morning. According to witnesses, the victim was lighting mortar-style fireworks in the parking lot and one device struck the back of his head. Police performed CPR until firefighters arrived, but he was pronounced dead at the scene. The preliminary investigation determined he died from an accidental explosion.