Cory Monteith’s estranged father Joe believes the Glee star may have been keeping his drug use a secret, even in the days leading up to his death.
In an interview with ET Canada Joe Monteith said he still grapples with the fact that his son is gone.
“I guess he was involved a little more in drugs than anybody knew at the time,” the military man said.
“His mother who was there with him all the time, she started picking up on it,” Joe Monteith recounted, saying that she first noticed his habits when money and things around the house had gone missing.
Joe Monteith admits that he wasn’t a big presence in his son’s life, having divorced his mother Ann McGregor when the actor was 7.
Cory Monteith and his father worked on rekindling their relationship, establishing contact after Glee threw him into fame in 2009.
“When they did break the news to my wife, she almost fell over, in fact, I had to grab her,” he said.
“I had to ask them again, <<What was that you said?>>. It didn’t really sink in. It still really hasn’t.
“I always loved both my sons and am going to miss Cory very very much.”
Cory Monteith, who was found dead in his hotel room on Saturday at the age of 31, was allegedly a hard-worker when in Los Angeles, and a substance-abuser whenever he would return to his native Canada, according to TMZ.
He checked into rehab in March and managed to stay clean while on the Glee set, but his resolve to stay sober weakened whenever he visited Vancouver, a source told the website.
According to sources, Cory Monteith’s girlfriend and Glee co-star Lea Michele, along with the rest of the hit television show’s cast, were aware of his addiction problems and worked hard to keep him clean and sober.
Cory Monteith allegedly never showed up for work under the influence of drugs or alcohol and abstained from these substances “most of the time”.
But his life in Canada painted a different picture, as he often returned to his hometown of Vancouver often, and surrounded himself with friends who fueled his addiction.
Cory Monteith grew up with his mother and brother Shawn in Victoria, British Columbia, and he saw little of his father after the divorce due to Joe’s military service.
In 2009, Cory Monteith reunited with his father for the first time in 17 years.
In an interview with Parade two years ago, Cory Monteith said: “We’d spoken maybe three or four times [during that period] and he reached out to me on Facebook. I couldn’t shut the door, so I got on a plane.
“He greeted me at the airport, and [he and stepmother Yvette] were so happy they were almost crying. It was a good time.”
The British Columbia Coroners Service revealed the autopsy results on Tuesday, adding that the investigation into his death is continuing, and that no further details were available at this time.