Ellise Shafer administratorAfter former Minneapolis police officer Derek Chauvin was found guilty on Tuesday of murdering George Floyd, stars took to Twitter to praise the verdict, but also called for lasting systemic change to prevent racially motivated violence at the hands of police officers.After the jury deliberated for over 10 hours, they found Chauvin guilty on all three of the charges he was facing: second-degree murder, third-degree murder and manslaughter.