New Mexico Mass Shooting: Police Release Video and Detail New Evidence.

A high school student used his newly purchased AR-15-style rifle to unleash a torrent of bullets from his yard before continuing his deadly march though a New Mexico neighborhood – leaving three people dead, six others wounded and yet another community wondering whether such tragedy could have been prevented. The gunman fired at least 141 rounds from his yard with the rifle before ditching it in some bushes and leaving the property with two handguns. Police will soon release body camera footage from the mass shooting.