There's more info here: videos and photos
Also timing was off,
"While the video time stamp showed 5:16 am local time, Noticias SIN confirmed the surveillance system's clock was inaccurately set an hour ahead - making the time the group was filmed at 4:16 am.
Additional footage showed Johnson and another woman holding hands as they returned from the beach at 5:05 am, 10 minutes before the other two young women had left the beach.
The camera picked up Riibe, barefooted and without his shirt, as he slowly walked back to his room at 8:54 am."
A source close to the investigation told DailyMail.com that Riibe, 22, a powerfully-built former high school wrestler, was 'being cooperative'. He is still in Punta Cana.
www.dailymail.co.uk