latino. a texas lawmaker says ramos legally purchased the two rifles used in the shooting from a federally authorized dealer on his 18th birthday. just three days earlier a photo of two ar-15-style rifles was posted on an instagram account linked to the gunman. the massacre is the deadliest at a u.s. elementary school since 20 children and six adults were killed in the 2012 sandy hook shooting in newtown, connecticut. u.s. president joe biden says it is time for americans and lawmakers to stand up to the gun lobby and pass common sense regulations. why are we willing to live with this carnage? why do we keep letting this happen? where in god s name is our backbone? the president is just back from a trip to asia. he ordered flags at the white house and other public buildings lowered to half staff. well, parents waited late into the night at a civic center on tuesday hoping to be reunited with their children. cnn s ed lavandera in texas with more. reporter: late into the