The younger brother of Nikolas Cruz has been arrested for riding his skateboard across the campus where his brother killed 17 students and staff. Zachary Cruz, 18, was arrested and booked into jail Monday night for trespassing at Marjory Stoneman Douglas High School, where he is a former student, USA Today reports. The report says the teen told deputies that he was there to "reflect on the school shooting and to soak it in."