Uvalde, Texas, school district police chief Pete Arredondo has resigned from his new position on Uvalde's City Council after facing widespread criticism over his handling of the May 24 school massacre when an 18-year-old gunman shot dead 19 fourth graders and two teachers. State authorities say Arredondo was the incident commander who ordered officers to wait in the school's hallway for over an hour instead of confronting the gunman. We speak with Sewell Chan, editor-in-chief of The Texas Tribune, which has led an investigation into the failed police response to the school shooting. "The heavy militarization of the region raises profound questions about why the police and law enforcement response was so lacking," said Chan. We also feature the Tribune's video report on a 1970 Mexican American student-led walkout that took place in Uvalde. #DemocracyNow Democracy Now! is an independent global news hour that airs on nearly 1,400 TV and radio stations Monday through Friday. Watch our livestream 8-9AM ET: https://democracynow.org Please consider supporting independent media by making a donation to Democracy Now! today: https://democracynow.org/donate FOLLOW DEMOCRACY NOW! ONLINE: YouTube: http://youtube.com/democracynow Facebook: http://facebook.com/democracynow Twitter: https://twitter.com/democracynow Instagram: http://instagram.com/democracynow SoundCloud: http://soundcloud.com/democracynow iTunes: https://itunes.apple.com/podcast/democracy-now!-audio/id73802554 Daily Email Digest: https://democracynow.org/subscribe