Andrew Embiricos, grandson of Hollywood screen legend Rita Hayworth, was found dead in his New York City apartment Sunday in what police called an apparent suicide. However, his mother and friends do not believe he committed suicide.

It was not suicide, Embiricos' best friend Jake Dingler told the New York Post. He had everything going for him.

According to Dingler, 25-year-old Embiricos was enjoying life with an upcoming vacation planned.

He was in a great place. We were planning a trip to Amsterdam next weekend for his birthday, Dingler told the New York Post.

Embiricos' mother, Princess Yasmin Aga Khan, called the death accidental and a tragedy.

Police said Andrew Ali Aga Khan Embiricos was found Sunday evening dead in his apartment with a bag over his head, tentatively calling it a suicide.

The medical examiner's office said an autopsy was inconclusive and toxicology results are pending, though no foul play is suspected.

Aaron Edwards, a friend of Embiricos, found him around 9 p.m. after he had been missing that day. Embiricos was pronounced dead at the scene but the medical examiner said he died between 8:30 p.m. and 8:50 p.m., just shortly before he was discovered.

Edwards told the New York Daily News he found Embiricos lying face up in his bed at The Grand Chelsea with a bag over his head and immediately phoned the police.

According to friends, Embiricos was in good spirits and was scheduled to have brunch that day with pals. He had also posted on his Facebook, excited for his getaway.

1 week until Amsterdam, 3 weeks until London, 3 and a half weeks until Manchester. God I love December, Embiricos wrote on Friday.

Embiricos was the son of Princess Yasmin Aga Khan, the daughter of silver-screen star and legend Rita Hayworth. Hayworth rose to fame in such movies in the 1940's as Gilda and Dante's Inferno. Hayworth married Prince Aly Aga Khan, Embiricos' grandfather, in 1949.

My son Andrew was an extraordinary young man, loved and admired by all who knew him, Princess Yasmin Aga Khan said in a statement. His accidental death is a terrible tragedy.

Embiricos attended Fordham University and received a degree in psychology, according to the Daily News. He worked as a sales executive for Virgin Atlantic Airways and founded a charity group for the homeless on Facebook. Embiricos also worked with HIV/AIDS groups and the Alzheimer's Association, which fights the disease his grandmother died of in 1987 at age 68.

According to the Daily News, Embiricos was an amateur porn star and posted videos on Xtube under an alias. Village Voice gossip columnist Michael Musto told the Daily News that Embiricos had been battling HIV and drug addiction with stints in rehab and had attempted suicide before.

Embiricos' uncle, Prince Karim Aga Khan, the leader of 15 million Shia Ismaili Muslims worldwide, issued a statement through his head of communications, Kris Janowski, following the death.

We do not know what happened yet, and we would appreciate everyone's privacy for the family, Janowski said.