Joshua Riibe, 24, was the last person seen with the 20-year-old University of Pittsburgh junior before she went missing from the Riu Republica Resort in Punta Cana in the early hours of March 6. Since Konanki vanished, Riibe has been at the center of the chaotic case and had his passport confiscated, forcing him to stay in the Dominican Republic under strict supervision. On Sunday morning, Riibe was spotted with investigators, his lawyer and his father as the person of interest pointed at the sea, NBC reported. Riibe told police conflicting versions of what occurred after the pair were seen heading to the beach, but reportedly provided more insight in an interview with investigators this week. Read more at DailyMail.com - link in bio. #missing #student #puntacana #dominicanrepublic #beach #investigation