The estranged husband of a Fort Lauderdale woman who disappeared in Spain must remain jailed without bond because he is a flight risk, a Miami judge ruled following a lengthy hearing Friday. David Knezevich, 36, appeared before Chief Magistrate Judge Edwin G. Torres Friday afternoon, six days after he was arrested at Miami International Airport on kidnapping charges, and months after his wife, Ana Knezevich, disappeared in Madrid in early February.