The boy who first raised the alarm that the South Korean ferry was sinking did not have time to call his parents, his father said, and was found dead not wearing a life jacket.
Choi's body was found on Wednesday, a week after the sinking, at the back of the fourth deck.
His father said: "If only he had been wearing a life jacket, I wouldn't be this heartbroken... He didn't have time to call his mum and dad... He reported it to 911 (emergency number) and he's back now. I am so proud of him."
The Sewol ferry sank on April 16 on a routine trip south from the port of Incheon to the traditional holiday island of Jeju.
More top news
Even if you're having a tough day in the office, it's unlikely to be as difficult as the one facing the director of the US Secret Service.
The first behind-the-scenes photographs of George Clooney and Amal Alamuddin's Venice wedding have been published in a celebrity magazine.
The US Secret Service chief faces questions from politicians today over the latest in a series of worrying White House security breaches.