Boston

IN the late 1980s, a small but influential group of criminologists predicted a coming wave of violent juvenile crime: “superpredators,” as young as 11, committing crimes in “wolf packs.” Politicians soon responded to those fears, and to concerns about the perceived inadequacies of state juvenile justice systems, by lowering the age at which children could be transferred to adult courts. The concern was that offenders prosecuted as juveniles would have to be released at age 18 or 21.

At the same time, “tough on crime” rhetoric led some states to enact laws making it easier to impose life without parole sentences on adults. The unintended consequence of these laws was that children as young as 13 and 14 who were charged as adults became subject to life without parole sentences.

Nationwide, 79 young adolescents have been sentenced to die in prison — a sentence not imposed on children anywhere else in the world. These children were told that they could never change and that no one cared what became of them. They were denied access to education and rehabilitation programs and left without help or hope.

But the prediction of a generation of superpredators never came to pass. Beginning in the mid-1990s, violent juvenile crime declined, and it has continued to decline through the present day. The laws that were passed to deal with them, however, continue to exist. This month, the United States Supreme Court will hear oral arguments in two cases, Jackson v. Hobbs and Miller v. Alabama, which will decide whether children can be sentenced to life without parole after being convicted of homicide.