(Al Jazeera) – The bandage wrapped around Mokhtar al-Jaradi’s head is still soaked in blood. There are cuts and grazes to his arms and face. But it’s the anguish etched in his dark brown eyes that really speaks of the massacre that unfolded in north Yemen last week. The eight-year-old was laughing and playing with a group of friends at the front of his school bus while on a day-long field trip organised by a pro-Houthi Islamic seminary.