Kent Kiehl, a prominent neuroscientist hired to study an admitted murderer named Brian Dugan, had already been under cross-examination in the hushed, wood-paneled suburban Chicago courtroom for more than an hour when a brain diagram, hatched with X's, was projected on a screen. The X's marked areas where Kiehl had discovered abnormally low grey matter density in Dugan's brain. In a curious meeting of law and neuroscience, those X's would help jurors decide whether he should be executed or sentenced to life in prison. Did the way Dugan's brain had developed leave him spring-loaded for violence? ... Read More