Sudiksha Konanki, a pre-med student, was on spring break with her friends in the popular Dominican Republic resort town of Punta Cana when she mysteriously vanished.

The “person of interest” in the disappearance of missing Pitt student Sudiksha Konanki claims he saved them both from drowning before she vanished.

According to a source involved in the investigation, Riibe, a former high school wrestler with a strong build, has been "cooperative" with authorities.