George Floyd’s girlfriend gives emotional testimony at Chauvin trial, 15 million Johnson & Johnson Covid vaccine doses destroyed by ingredient mix-up, and inside lab where Pfizer’s Covid vaccine originates. Watch “NBC Nightly News With Lester Holt” at 6:30 p.m. ET / 5:30 p.m. CT (or check your local listings). 00:00 Intro 02:14 George Flyod's Girlfriend Breaks Down On The Stand 03:48 Paramedics Testify Floyd Unresponsive At The Scene 04:00 Derek Chauvin's Body Cam Video Played In Court 04:24 Floyd's Brother in Court As Ambulance Images Shown 04:44 Ex-Supervisor Testifies On Chauvin's Use Of Force 04:54 Minneapolis Police Chief Expected To Testify Tomorrow 05:25 15 Million J&J Doses Destroyed By Ingredient Mix-Up 06:49 Pfizer: Vaccine Remains Effective After Six Months 07:10 Inside Lab Where Every Pfizer Vaccine Dose Originates 10:22 Dr.Anthony Fauci One-On-One 10:33 Fauci: J&J Vaccine Mix-Up Won't Delay U.S. Timeline 11:10 Fauci 'Confident' Vaccines Will Win Race Against Covid 12:14 Fauci Urges Americans To 'Hold Out Just A Bit Longer' 13:24 California Mass Shooting Kills 4, Including 9-Year Old 14:53 Migrant Girls Thrown Over Wall Now In U.S. Custody 15:35 Over 18,000 Migrant Children Now Being Held In U.S. 16:49 Ex-Group Home Employee Breaks Silence On Teen's Death » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews Connect with NBC Nightly News online! NBC News App: https://smart.link/5d0cd9df61b80 Breaking News Alerts: https://link.nbcnews.com/join/5cj/breaking-news-signup?cid=sm_npd_nn_yt_bn-clip_190621 Visit NBCNightlyNews.com: https://nbcnews.to/2wFotQ8 Find Nightly News on Facebook: https://bit.ly/2TZ1PhF Follow Nightly News on Twitter: https://bit.ly/1yFY2s4 Follow Nightly News on Instagram: https://bit.ly/2tEncJD NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. #GeorgeFloyd #CovidVaccine #NBCNews NBC Nightly News Broadcast (Full) - April 1st, 2021 | NBC Nightly News