Cory Monteith, according to Glee director Adam Shankman, "was doing amazing" before being discovered dead in a Vancouver hotel room just after midday on Saturday (13th July). Initial reports of the death included details of Monteith's previous rehab stays for substance abuse, raising questions whether drugs could have had a connection with the 31 year-old's death.

Cory Monteith
Actor & Singer Cory Monteith Found Dead In A Hotel Room, Substance Abuse Unlikely.

It has now been reported by police officials via The Independent that there was nothing to indicate the actor's death was due to illicit drug use, although it could be several days before toxicology test results are completed.

Currently, the cause of his death is still unknown; Coroner Lisa Lapointe said: "We do not have a great deal of information as to cause of death." Since the initial confirmation of Monteith's death at the weekend, it has been revealed that there were others who were present in the hotel room with the singer/actor on the Friday night but his key fob data indicates he returned to the room on his own early on the Saturday morning.

Hotel staff went to the room to investigate after Monteith failed to check out at midday, as was scheduled.

Cory Monteith Lea Michele
Monteith With Girlfriend And Glee Co-Star Lea Michele.

Monteith played a Glee main character Finn Hudson - a sporty jock-turned glee club singer - in the series alongside his girlfriend Lea Michele, who has said she's "devastated" at the death of her boyfriend, asking fans and the press to respect her privacy.

Michele, who'd been dating the Glee heartthrob for a year, supported Monteith when in March this year he entered rehab until April for unspecified substance abuse, having first entered into rehab at age 19 - a time when he recalls he was taking "anything and everything."

Tributes have poured in from fans, co-stars, and fellow celebs alike, all who are stunned to hear to news of the talented actor's untimely passing.

Watch Glee Footage Of Monteith Singing 'Losing My Religion':