Live Updates: Derek Chauvin trial continues after two days of tense, emotional testimony

After two days of sometimes tense and emotional testimony, prosecutors will continue to lay out their case Wednesday against Derek Chauvin, the fired Minneapolis officer charged in the death of George Floyd. 

Chauvin, who was seen in a disturbing video kneeling on the neck of the unarmed Black man, is charged with second-degree murder, third-degree murder and second-degree manslaughter. He has pleaded not guilty.  Tuesday's proceedings concluded with the testimony of Minneapolis firefighter and emergency medical technician Genevieve Hansen, who was heard on video repeatedly asking the officers to take Floyd's pulse. Hansen testified she was "desperate" to help the man, but she said officers wouldn't allow her to provide medical assistance, leaving her feeling frustrated, helpless and "totally distressed."