The family were killed during a US airstrike in Somalia. According to a Guardian investigation, at least 12 civilians, including eight children, died during the attack.
It is the deadliest US operation for civilians in Somalia during either Trump administration. The US had not killed so many innocent people in a single incident in the east African country for 18 years. The previous highest confirmed toll was the bloody, botched US military operation in the capital, Mogadishu, that became known as the 1993 Black Hawk Down incident.
It will not make a difference in how illegal and wrong it was, but having some verified numbers about the percentage of civilians casualties over combattants helps understand if it was mistakes/collateral damages of military targets, or something worse.