Cathy Smith — the woman who was responsible for injecting comedian John Belushi with heroin and cocaine, which led to his death at 33 — died August 18 at the age of 73.

According to Canada’s The Globe and Mail, the once one-time girlfriend of Canadian singer-songwriter Gordon Lightfoot had been on oxygen and in failing health over the past few years.

Smith was a backup singer for The Band — she claimed she inspired their song ‘The Weight’ — and occasionally sold drugs. Ultimately, Smith admitted to injecting Belushi with cocaine and heroin. In 1986, Smith went to prison after she pleaded guilty to involuntary manslaughter. The controversial public figure went on to serve 15 months in prison at the California Institution for Women.

THERE & BACK: CELEBRITIES WHO SURVIVED A DRUG OVERDOSE

Prior to Smith’s ultimate downfall, she had been a Hollywood drug dealer known on the streets as Cathy Silverbag because she sold drugs out of her metallic purse. Smith sold drugs and partied with celebs, including The Rolling Stones, Robin Williams, and Keith Richards, according to Bob Woodward’s 1984 biography, Wired, which was written about Belushi.

In the 1989 film adaptation of Woodward’s Wired biography, which was directed by Larry Peerce, Smith was portrayed by Parri D’Arbanville and Michael Chiklis starred as Belushi.

DID MARLON BRANDO’S RECLUSE HOME LIFE CONTRIBUTE TO HIS DEATH? REELZ REVEALS SHOCKING NEW DETAILS OF THE ACTOR’S FINAL DAYS

After Smith gave Belushi the fatal dosage, her A-list friends turned on her and the rest of her days were far from glamorous as she was homeless and continued to sell drugs. Smith eventually filed for bankruptcy before ending up in senior housing.

Scroll through the gallery below to see the last photos of Smith before her death. 

Sound off in the comments below!

Join the conversation