Riveting Film About the Massacre at the Mall in Kenya

I hope a lot of people get to see this through HBO, which is how I encountered it. It's brilliantly constructed, using the actual footage from the mall cameras that recorded the attack and the narration of the victims and the very courageous gentlemen who went into the building to try to recue those who had been trapped, a number of whom had been badly wounded. Many of the people were very brave and tried to help each other survive, especially the young mothers who fiercely protected their children. The story they tell is truly riveting.