"I am in absolute shock” says Demi Moore who is stunned and saddened by the death of a 21-year-old man in the backyard pool of a Los Angeles home she owns.

The man, Edenilson Steven Valle, had gone missing for 10 or 15 minutes before his friends found him floating in the deep end of the pool yesterday morning, said Los Angeles County coroner's Lt. Fred Corral. Valle's family and friends told investigators he didn't know how to swim.

"I was out of the country travelling to meet my daughters for a birthday celebration when I got the devastating news" Moore said the death, which occurred at a party held by her assistant in her absence, was an "unthinkable tragedy, and my heart goes out to this young man's family and friends."

Police and paramedics responded to the home in west Los Angeles after a 911 call at about 5:15 am. The paramedics started CPR, but Valle was pronounced dead at the scene at 5:30 am, Corral said.