December 9, 2014 7:20 am Investigators Probe Cause of Downtown LA Fire Investigators are probing the cause of a massive fire that burned down a seven-story under-construction apartment building. Toni Guinyard reports for Today in LA Dec. 9, 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