Officials: L.A. Apartment Fire Was Arson

Federal investigators said Thursday a fiery blaze that leveled a seven-story apartment building in downtown Los Angeles was an act of arson. Members of the national response team, the Bureau of Alcohol, Tobacco, Firearms and Explosives, have been searching the remains of the 1.3 million-square-foot Da Vinci apartment complex since it burned down Dec. 8 and have concluded that the fire was deliberately set. The damage is estimated in the tens of millions of dollars, with additional harm caused to the nearby 110 Freeway and other city buildings. Authorities said they are seeking two potential witnesses who were spotted on video footage for questioning, but not as suspects or persons of interest.