Boston Bombing: 5 things to know about the Tsarnaev trial NPR’s Tovia Smith reports that prosecutors have amassed a trove of evidence linking Tsarnaev to the bombings. That’s why Northeastern University law professor Daniel Medwed says, “This case is not about guilt.” “In my mind,” Medwed adds, “this case is really about whether or not he’s going to get the death penalty.”