Authorities in California are trying to determine the motive behind the shooting in Monterey Park that killed 11 people celebrating the Lunar New Year. It's the deadliest shooting the U.S. has seen since 19 children and two teachers were killed last June in Uvalde, Texas. Amna Nawaz reports from Monterey Park and spoke with Rep. Judy Chu about the latest community affected by mass gun violence. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: TikTok: / pbsnews Twitter: / newshour Instagram: / newshour Facebook: http://www.pbs.org/newshour Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe