October 19, 2009 6:38 pm Official Cause of Cafritz Mansion Fire “Undetermined” After months of investigation, the D.C. Fire Department can’t determine the exact cause of a July fire that destroyed a Northwest mansion. Local 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 0:43 American University locked down before man arrested on campus 3:08 Family holds memorial for brothers, 3 and 6, who died after Clifton house fire 2:05 ‘People immediately hit the ground': 6 hurt in shooting outside DC nightclub 2:20 Driver accused of deadly hit and run of skateboarder held without bail