A suspect, who police believe to be homeless, has been identified in the fatal stabbing of 24-year-old UCLA graduate student Brianna Kupfer. Los Angeles Police Chief Michel Moore says he’s alarmed about the growing impact of the city’s housing crisis, but advocates argue the issue is more nuanced. Meanwhile in New York City, mourners gathered to remember Michelle Go who was pushed in front of an on-coming subway train by a homeless man. NBC’s Erin McLaughlin reports for TODAY. » Subscribe to TODAY: http://on.today.com/SubscribeToTODAY » Watch the latest from TODAY: http://bit.ly/LatestTODAY About: TODAY brings you the latest headlines and expert tips on money, health and parenting. We wake up every morning to give you and your family all you need to start your day. If it matters to you, it matters to us. We are in the people business. Subscribe to our channel for exclusive TODAY archival footage & our original web series. Connect with TODAY Online! Visit TODAY's Website: http://on.today.com/ReadTODAY Find TODAY on Facebook: http://on.today.com/LikeTODAY Follow TODAY on Twitter: http://on.today.com/FollowTODAY Follow TODAY on Instagram: http://on.today.com/InstaTODAY #Murders #UCLA #NYC