‘Substantial causal factor’ of death: What the state must prove in Chauvin trial

“The jury instructions state that to cause it, it doesn’t have to be the only thing—as long as it’s a substantial causal factor in the death. It can be one of many, but as long as it’s substantial, then that can carry the day for the prosecution,” says Katie Phang on what the state must prove for a conviction in the Chauvin trial.