Joshua Riibe, believed to be the last person to see Sudiksha Konanki before she vanished in Punta Cana, said he's trying to 'help' investigators as he warned 'the ocean is a dangerous place'

The case of missing Indian-origin student Sudiksha Konanki continues to unravel. The last person to see the 20-year-old, who disappeared in the Dominican Republic, was Joshua Riibe. Authorities have declared the 22-year-old man a ‘person of interest’ and confiscated his passport;

Investigators suspect that the spring breaker removed her clothing, leaving it on the lounge chair, before entering the ocean and drowning while wearing a brown bikini.

Authorities in the Dominican Republic have seized the passport of Joshua Riibe, the man seen with University of Pittsburgh student Sudiksha Konanki before she went missing, Fox News has learned.

Sudiksha Konanki's disappearance in the Dominican Republic has led to intense scrutiny of Joshua Riibe, the last person to see her.

The top prosecutor in the Dominican Republic personally questioned Joshua Riibe Saturday, the last known person seen with missing Virginia college student Sudiksha Konanki, as authorities intensify their investigation into her disappearance.