The U.S. Supreme Court ruled yesterday that states may no longer sentence juveniles under the age of 18 who have committed homicide to mandatory life sentences without parole. Laurence Steinberg, professor of psychology at Temple, joined WHYY-FM's "Radio Times with Marty Moss-Coane" to discuss the ruling: "The court has now accepted the fact that there is good social, behavioral and neuro science that supports — what most people take for granted — that adolescents are different than adults and that those differences matter for how we treat them under the law."