How did stephen gately die? :'(

"Stephen Patrick David Gately (17 March 1976 – 10 October 2009) was an Irish pop singer, songwriter and actor, who, with Ronan Keating, was one of two lead singers of the pop group Boyzone."

"Gately died of natural causes on October 10, 2009, due to genetic, cardiogenic pulmonary oedema.
On 6 October 2009, Gately had posted on Twitter, saying: "Still busy, lots going on. Focussing on finishing my book next so may be quiet here." He had attended the Pride of Britain Awards in London before flying to his apartment in Majorca.

Gately's body was discovered on 10 October 2009, by Bulgarian Georgi Dochev, in the apartment which Gately owned with Cowles near Port d'Andratx on the western tip of Majorca in Spain. After meeting up at the Black Cat club in Majorca's capital Palma on the Friday night, the three had returned to the apartment. Dochev stayed in the spare bedroom; exiting in the early morning hours, he found Gately, and went to Cowles and Gately's bedroom to awaken a sleeping Cowles. Spanish police were alerted at 1:45 pm by Cowles, after he had tried to revive Gately. Gately was found squatting in an awkward way on a sofa, dressed in his pyjamas. Police said they had no reason to believe the death was related to abuse of substances such as drugs or alcohol and no suicide note or signs of violence were located on the corpse. The Gately family enlisted celebrity solicitor Gerald Kean as their official spokesperson; Kean ruled out foul play and suicide, describing it as "just a tragic accident". It was Kean, Gately's solicitor throughout his career, who informed the four remaining band members that Gately had died."

"An investigation into the circumstances of Gately's death was underway, with police concentrating on a night out he had with Cowles. A post-mortem and toxicology tests took place on 13 October and this examination showed that Gately died of natural causes due to genetic, cardiogenic pulmonary oedema. He paternally inherited the condition. Toxicology also confirmed the statement by Gately's partner Cowles that he had been smoking cannabis that evening."
Source and further information:
http://en.wikipedia.org/wiki/Stephen_Gately

RIP Stephen Gately

"Stephen Gately - You're Not Alone" (Michael Jackson song)
http://www.youtube.com/watch?v=YKc_1NOcwp4

That is a good question. Some say he was out drinking all night before he died and the doctor who performed the autopsy on him says he died from natural causes. A lot of people find this difficult to believe as how can a perfectly healthy 33 year old who didn't have any underlying medical conditions just die very suddenly. The fact that he way gay will also add more fuel to the fire.