Sunroof shattered at a red light suddenly. Outside temperature was around 50 F. Two friends had small superficial cuts. We were stopped at a red light at the city (ATL). Vehicle is been inspected and the fault is been adjudicated to an impact. Sunroof has cero impact marks nor ds it have impact holes or impact point. Two main horizontal fractures can be seen at the front and back portion of the glass. Affected glass is the first motorized glass. No other impact of scratches on the car.