Prison officials did not list the cause or manner of death. He was 86.
The shooting left Michael Dunbar, 28, and Teray Lyles, 29, dead.
In a highly unusual move, at the request of prosecutors, a judge on Thursday tossed out the guilty plea of a man who a month ago admitted to the rape and murder of a 15-year-old Arbor View High School freshman.
North Las Vegas police investigating an apparent homicide Friday afternoon.
A man has been arrested after an attack that left one man dead and another injured, Friday morning in North Las Vegas, according to North Las Vegas police.