tonight, new reporting on tonight, breaking news as we come on the air in the west. we have images as a man opens fire on a california police station. a deputy shot in the face. and new reporting at this hour on the former police officer, derek chauvin, charged in the murder of george floyd. prosecutors confirming chauvin was negotiating a guilty plea to local and federal charges, so, what changed? as george floyd's brother appears before congress today, his emotional plea, saying his brother did not deserve to die over $20. and what he said when asked if he believed his brother's killing was premeditated. also tonight, as we come on the air, the urgent manhunt for a gunman who open fird on a police station. a deputy wounded, shot in the face. a second person found shot to death nearby. investigators do believe the shootings are connected. residents ordered to shelter in place. and what authorities have just