Dominican Attorney General Yeni Berenice Reynoso grilled U.S. witness Joshua Riibe in person in the unsolved disappearance of Sudiksha Konanki, of Virginia.

The man who officials called a person of interest in the case of missing University of Pittsburgh student Sudiksha Konanki remains in the Dominican Republic as officials say his passport has now been revoked. VIDEO ABOVE: Joshua Riibe, person of interest in search for missing Pitt student Sudiksha Konanki, passport revoked by officials