Prosecutors of Florida school shooter Nikolas Cruz called for an investigation Friday after a juror said another panelist threatened her during the deliberations that ended with a life sentence for Cruz's murder of 17 people four years ago at Parkland's Marjory Stoneman Douglas High School. Prosecutor Carolyn McCann told Circuit Judge Elizabeth Scherer during a brief hearing that prosecutors are not trying to invalidate Thursday's jury vote and reported the threat only for safety reasons and so the Broward County Sheriff's Office can investigate. In their written motion asking for the hearing, prosecutors said the juror told them another juror...