January 22, 2015 6:00 pm Student Stabbed at Middle School in Palm Beach County A student was stabbed at Polo Park Middle School in Palm Beach County, authorities said. US & World Videos 6:09 Commissioner discusses judge's decision on Urban Development Boundary in Miami-Dade 1:32 6 to Know — Top stories of the day 1:46 Broward Sheriff's deputy hits man with vehicle while responding to call 2:31 Family returns to crash site that killed two women in Hialeah 2:04 Family calls for justice after deadly crash in Hialeah