The younger half-brother of accused Florida shooter Nikolas Cruz has apparently broken his silence. A Facebook user named Zachary Cruz posted a public message late Saturday. "Appreciate all the positive messages," he wrote, adding heart emojis. Zachary Cruz, 18, has not publicly spoken out since his 19-year-old brother allegedly opened fire at Marjory Stoneman Douglas High School on February 14, killing 17 people. #InsideEdition
