India, March 11 -- A 24-year-old tourist from Iowa, who was the last person to see University of Pittsburgh student Sudiksha Konanki alive, gave three versions to the police of what happened. Joshua Stevem Ribe, a fellow guest at the Caribbean resort from tiny Rock Rapids, suggested that he passed out drunk on the beach, and when he woke up, Konanki was missing.

Konanki, 20, an Indian-origin woman, vanished while on a spring break holiday in Punta Cana, Dominican Republic. She was last spotted at the Riu Republica Resort beach on March 6 around 4:50 am.

Dominican media outlet Noticias SIN reported that Konanki and her friends were caught on surveillance video partying at a disco at Riu Republica Resort at 3 am. The group left around 4 a...