towers elementary school with the headline force of nature. that's it for me. thanks very much for watching. i'll be reporting tomorrow from here in oklahoma once again. erin burnett "outfront" starts right now. >> "outfront" next, seven schoolchildren killed during the tornado in oklahoma. the mother of one of the children says those deaths could have been avoided. plus, a shocking twist in the boston bombing investigation. a man being questioned about his ties to the suspects shot and killed today by fbi agents. and a soldier hacked to death with a meat cleaver on the street in broad daylight. we'll show you the suspect's alleged confession to camera before the police came. let's go "outfront." good evening, everyone. i'm erin burnett. "outfront" tonight, could the children have been saved?