He has yet to be identified.
The man appears to have drowned following a pool party yesterday at Demi's Beverly Hills residence. According to TMZ, he was an invited guest of the home's caretaker at a get-together. He was left alone when the rest of the group departed, and apparently slipped into the pool. He was known not to be able to swim.
The body was discovered this morning; law enforcement has confirmed that no members of Demi's family were present when the body was removed, nor were any members of her family present when the man was on the grounds before the accident.
Demi was out of town at the time of the incident.