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

A person of interest has been identified in the disappearance of Sudiksha Konanki, a University of Pittsburgh student who vanished while on spring break in the Dominican Republic last week.

Joshua Steven Riibe, 24, has been identified as the man seen hugging and walking hand-in-hand with the 20-year-old student just hours before she vanished in the Dominican Republic.

Konanki, 20, an Indian national from Virginia, disappeared in the early hours of March 6 while on spring break with friends at the RIU Hotel & Resort in Punta Cana.

Joshua Riibe has been named a "person of interest" in the missing person case out of the Dominican Republic. A 58-year-old man from Riverside County is suing the University of California Board of Regents after undergoing a routine outpatient procedure to repair the meniscus in his left knee ended with him tragically losing much of his leg.

Missing University of Pittsburgh student Sudiksha Konanki made two Venmo payments the afternoon before she disappeared from a Dominican Republic beach, as the search for her enters its second week. The 20-year-old Virginia native made the transactions 40 minutes apart on the afternoon of March 5,

A person of interest has been named in the ongoing investigation into the disappearance of 20-year-old Sudiksha Konanki, a pre-med student at the University of Pittsburgh who went missing while vacationing with friends in the Dominican Republic.

The desperate search for missing University of Pittsburgh student Sudiksha Konanki in the Dominican Republic is ongoing -- and now, authorities in Virginia have zeroed-in on a person of interest.

The footage shows the pair staggering while taking selfies in an early hours walk with pals at the same Domincan resort.