Tragic Loss: Influencer Daughter Dies from Laughing Gas Addiction After Boyfriend's Chilling Threat

SITTING in court, Amanda Taylor fought back tears hearing the harrowing details of her daughter’s abuse.

Joel Osei, 33, had subjected entrepreneur and influencer Tianne Robinson, 29, to multiple attacks, including smothering her face with a pillow, and kicking and strangling her during their three-year relationship.

Tianne Robinson was in an abusive relationship, which saw her spiral into depression and abuse canisters of nitrous oxide, known as ‘laughing gas’ Credit: HotSpot Media Joel Osei subjected entrepreneur Tianne to multiple attacks during their three-year relationship Credit: HotSpot Media

Yet, her precious girl and best friend was unable to speak her truth and testify, as she’d tragically passed away just five months before the trial.

Following the abusive relationship, Tianne had spiralled into which saw her abuse canisters of nitrous oxide, known as ‘laughing gas’.

Tianne died in September last year from a pulmonary embolism, due to deep vein thrombosis from her addiction.

In February, Osei was found guilty of multiple offences and caged for four years and two months.

Tianne died in September 2025 from a pulmonary embolism due to deep vein thrombosis from her addiction Credit: HotSpot Media Tianne with mum Amanda Taylor – who has slammed the lack of support her daughter received from authorities Credit: HotSpot Media

A recent inquest into Tianne’s death saw Nottingham’s mental health trust admit missed opportunities related to her care.

With Coroner Laurinda Bower stating: “There were clearly missed opportunities to have engaged with her in terms of her mental health.”

Tianne had been referred to the Healthcare Foundation Trust by her and although the trust prepared a plan for her care, this was never communicated to her. With a letter being sent to the wrong address.

Tianne had also reported a history of sexual violence but there was no referral or signposting to sexual violence support services.

Tianne was found dead in her flat surrounded by canisters of empty nitrous oxide Credit: HotSpot Media As well as regularly using cocaine and nitrous oxide, she was drinking alcohol daily Credit: HotSpot Media

Now, Amanda has slammed Osei’s sentence and the lack of support her daughter received from authorities after fleeing the violent relationship.

The 50-year-old mum, from Nottingham, says: “My daughter was suffering so much and no one was helping her with any urgency.

“She was in such a vulnerable place after escaping a horrific relationship.

“More support needs to be in place for victims of abuse. She was failed.

Tianne during one of her hospital visits Credit: HotSpot Media Tianne had been struggling with self-care and confessed to having had suicidal thoughts Credit: HotSpot Media

“The system has to change.

“And more needs to be done to protect girls from monsters like Osei.”

Tianne met Osei in 2021 after moving from Nottingham to London.

But when she confessed to her mum that he was going to , Amanda immediately warned her daughter against him.

Amanda says: “I told Tianne it was a major red flag, but she was in love and didn’t listen.

“Six months later, she said she’d ended things with Osei.

“I was relieved.”

However, in February 2024, Tianne called her mum from a hospital bed.

She says: “Joel had placed a pillow over her face and smothered her.

“He’d then strangled her until she lost consciousness. I was beside myself with worry.”

She was rushed to hospital and diagnosed with a blood clot and pneumonia – but moved back to Nottingham after being discharged.

Over the following months, Amanda learned more grim details about the abuse her daughter had suffered for years at the hands of Osei.

She explains: “She told me that during arguments he often threatened to kill her, called her vile names like ‘fat f**king’ ‘b*tch’ and ‘slag’ and even threatened to post nude pictures of her online.

“He was vile.”

He even ridiculed her for being unable to conceive, referring to her diagnosis – a uterine disorder she’d discuss on her social media pages.

By January 2025, Tianne found the courage to go ahead with the prosecution and Osei was arrested and remanded – yet he continued to threaten her.

Amanda explains: “He was sending her messages telling her to ‘sleep with one eye open’.

“Tianne was petrified and wasn’t coping.

“She was like a broken doll.”

In June that year, Tianne was rushed to hospital, complaining of being unable to feel her hands and legs.

Amanda says: “It was then I discovered she’d been abusing solvents, with a doctor confirming the nitrous oxide had stripped her body of B12, causing a dangerous blood clot.”

Tianne was prescribed blood thinners and was discharged.

Amanda says: “Tianne was so ashamed, but I told her I loved her so much.

“I hoped it’d scare her into stopping.”

Shortly after, Tianne had admitted to a community mental health nurse during a triage telephone call that she was struggling with self-care and that she’d had suicidal thoughts.

She also disclosed that she had attempted to end her life three months prior.

As well as regularly using cocaine and nitrous oxide, she was drinking alcohol daily.

A decision was made to refer Tianne to create a safety plan, but this never took place.

A letter detailing the assessment was sent out, but it was posted two months later and went to the wrong address, so failed to reach her.

Amanda says: “By early September, Tianne was struggling to breathe.

“I was so worried about her.”

Tragically a week later, Tianne was found dead in her flat surrounded by 70 canisters of empty nitrous oxide, including two large cans under her pillow.

At the trial, the court heard how Osei, who originally faced four rape charges, had been arrested four times for abusing Tianne.

Each time, he’d coerced her into dropping charges.

Once, he’d beaten her up on the street after she refused to have a threesome with another woman they’d met in a nightclub.

As part of the attack, he had pulled off her wig and kicked her on the concrete.

He even threatened to bury her in Epping Forest and firebomb her home.

At Snaresbrook Crown Court he admitted strangulation, assault and controlling and coercive behaviour.

Amanda says: “He’s a monster and broke my girl.

“Four years in prison for the hell he inflicted on her is disgusting.

“To me, her life was cut short because of his abuse.”

The coroner was unable to say whether the mental health failings directly contributed to Tianne’s death, but the trust has prepared an action plan to bring in improvements.

Now, Amanda is calling for Tianne’s Law, a petition to strengthen protection for domestic abuse victims.

She says: “I want to create a care package for those leaving violent relationships.

“I want there to be a marker on their files so they get the proper protection and support they need.

“I wish I could’ve saved my beautiful daughter.

“But if I can save another life then I’ll do everything in my power to.”

To help Amanda raise funds for a community hub for women affected by domestic abuse, donate here .