UVALDE, Texas (AP) — President Joe Biden grieved with the shattered community of Uvalde on Sunday. He mourned privately for three hours with anguished families left behind when a gunman killed 19 schoolchildren and two teachers. The president was met with chants of “do something” as he departed a church service and responded, “we will.” Biden and his wife, Jill, visited a memorial to those who were slain at Robb Elementary School and attended Mass at a Catholic church. Biden met privately with first responders before flying back to his home in Delaware.