This week in the Derek Chauvin murder trial, officers and medical experts testified on the cause of George Floyd’s death. And why it’s so hard to prosecute police officers. Read more:During the second week of the Derek Chauvin murder trial, prosecutors focused on two subjects: how the former officer’s tactics, denounced by fellow police officers on the stand, did not align with his training; and what was happening biologically to George Floyd in the key moments before his death. Holly Bailey reports from Minneapolis. Brown University associate professor Nicole Gonzalez Van Cleve on the interdependence between prosecutors and police officers – and why it means that officers rarely face consequences in excessive-use-of-force cases. If you value the journalism you hear in this podcast, please subscribe to The Washington Post. We have a deal for our listeners: one year of unlimited access to everything The Post publishes for just $29. To sign up, go to postreports.com/offer.