For one Yemeni father, any hope that his son was alive was crushed when he spotted a body in the back of a pickup, the corpse partially covered by a blue tarpaulin.
"Is this Yousif? Is this Yousif?" he cries as he grabs at the side of the vehicle and begins to shake it: "Oh my God!"
Pain is etched across his face as the reality sinks in.
"Oh Yousif, oh Yousif," he wails, his voice rising to a scream.
"What is the fault of these small children?" he asks of no one in particular.
In a second video,...