A federal judge in Los Angeles on Thursday sentenced a scuba dive boat captain to four years in prison and three years supervised release for criminal negligence after 34 people died in a fire aboard the vessel. The Sept. 2, 2019, blaze was the deadliest maritime disaster in recent U.S. history, and prompted changes to maritime regulations, congressional reform and several ongoing lawsuits. Captain Jerry Boylan was found guilty of one count of misconduct or neglect of ship officer last year.