A man whose great granddaughter was killed in Tuesday's school shooting in Uvalde, Texas is inconsolable as he confronts police, telling them they did not act quickly enough to stop the gunman who killed 19 people. Speaking near an improvised memorial for those killed, 78-year-old Ruben Mata Montemayor said: "Who screwed up? And they could tell me 'Oh, we made a mistake. We made the wrong decision'. But my great granddaughter is not coming back to me." IMAGES AND SOUNDBITES