December 16, 2014 9:00 pm Sony Hack Threat Escalates A new warning from the hacking group behind the Sony cyber attack. Conan Nolan reports for the NBC4 News at 5 p.m. on Tuesday, Dec. 16, 2014. US & World Videos 1:42 Shooting investigation at DTLA warehouse 3:20 Encampment remains on USC 1:39 Bicyclist killed in hit-and-run 3:43 Despite encampment's clearing, safety concerns linger at UCLA 4:09 Parents speak out after son's beating at LA juvenile hall