Former Memphis police officer Desmond Mills Jr. pleaded guilty Thursday to federal charges in the death of Tyre Nichols, who died three days after being violently beaten by officers during a traffic stop. Mills and four other officers are also facing separate state murder charges in Nichols' death. Elise Preston has more. #news #tyrenichols #memphis "CBS Evening News with Norah O'Donnell" delivers the latest news and original reporting, and goes beyond the headlines with context and depth. Catch the CBS Evening News every weekday night at 6:30 p.m. ET on the CBS Television Network and at 12 a.m. ET on the CBS News app. Subscribe to the "CBS Evening News" YouTube channel: youtube.com/CBSEveningNews Watch full episodes of "CBS Evening News": cbsnews.com/evening-news/full-episodes Follow "CBS Evening News" on Instagram: instagram.com/cbseveningnews Like "CBS Evening News" on Facebook: facebook.com/CBSEveningNews Follow "CBS Evening News" on Twitter: h...