New Delhi, March 14 -- Chilling new surveillance footage has surfaced, showing missing Indian American University of Pittsburgh student Sudiksha Konanki staggering while walking arm-in-arm with Joshua Steven Riibe, an Iowa man identified as a "person of interest" in her disappearance. The footage, recorded around 4:15 a.m. near the beach at Punta Cana's Riu Republica Hotel, shows the pair holding hands while Konanki's friends stroll nearby.

Riibe is seen holding out his phone, seemingly taking selfies as Sudiksha Konanki struggles to walk straight. According to Dominican Republic authorities, the two were last seen together after leaving a nightclub following a power outage at the resort, according to a New York Post report.

Riibe, a Mi...