Former judges and top legal officials are calling on the Florida Supreme Court to impose life sentences on nearly 400 people now awaiting execution on death row.

The group, which includes three former state Supreme Court justices and two former presidents of the American Bar Association, filed a legal brief Tuesday in a case that could determine the fate of Florida's death penalty.    

In January, the U.S. Supreme Court declared Florida's death penalty sentencing law unconstitutional, prompting the state Supreme Court to halt two executions. The Florida Legislature responded by overhauling the law.

But the Florida Supreme Court still hasn't decided what should happen to those sentenced to death under the previous sentencing scheme. The court will hear arguments from lawyers this week on what should be done.