Jason Dors Lake's tragic last days included a cancelled birthday trip and downing booze alone at his council flat, sources close to the late actor have revealed.
The youngest of Diana Dors' three sons was found at his flat by a friend just days after turning 50.
Mr Dors Lake was open with his struggles with alcoholism throughout his adult life and is said to have returned to drinking after witnessing the Grenfell Tower tragedy in 2017.
In the days before his death, friends say Mr Dors Lake had planned a trip to Columbia with his girlfriend, but he wasn't allowed to board the plane because he was too drunk.
His girlfriend is said to have gone on without him, leaving Dors Lake to return to his council flat in west London alone, reports the Daily Mail.
Speaking of his final hours, a friend said: "I think he was just drinking a huge amount and had taken some pills and just didn’t wake up.
"A friend had to climb through the window to check he was okay and found him."
They added: "Jason had a hedonistic lifestyle so this was always on the cards. I know he’s been living a precarious life for quite a long time and he goes up and down."
It is not yet known how Dors Lake died but family and friends are said to be shocked at his sudden death.
The sad news was announced on Facebook group Diana Dors: The Legacy announced the death over the weekend.
A statement read: "Good morning, it saddens me to inform you of the passing of Diana's youngest son, Jason Dors Lake at the age of 50.
"Please join me in offering condolences, thoughts and prayers to Jason's loved ones and close friends at this time."
Mr Dors Lake had been just 14-years-old when his mother Doris, dubbed Britain's answer to Marilyn Monroe, died from ovarian cancer.
Five months later his father, actor Alan Lake, shot himself dead outside his son's bedroom at the family's Berkshire mansion.
Mr Dors Lake later said that before the deaths of his parents he'd been exposed to their wild lifestyles, claiming he was 'smoking pot' aged nine and given a champagne bottle 'to keep him quiet' while in his pram.
Orphaned Dors Lake was sent to live with a half-brother in California after his parents' death. He returned to England in 2013 where he tried to make a career as an actor and landed a role in TV daytime drama Doctors.
Nine years ago, Dors Lake fell from a balcony of the third floor apartment he shared with his girlfriend - falling head first onto the pavement below shattering multiple bones.
Mr Dors Lake broke his neck, arm, hip and foot.
Then in 2016 he was back in the spotlight as he cut a glum appearance at Hammersmith Magistrates court.
Mr Dors Lake admitted shoplifting two bottles of wine from Waitrose, telling the court he felt suicidal after rowing with his girlfriend.
He had tried to turn his life around but was said to have been deeply affected by the Grenfell Tower Tragedy two years ago and returned to drinking.
Jason leaves behind daughter Morgana Ruby Lake, 29, from his first marriage to Maya Firth Sendall.
