‘My world came crashing down’: Estranged wife of popular Sydney dentist, who was shot dead by police, pens letter to ex-husband revealing ‘affairs’, ‘secrets’ and ‘abuse’

The estranged wife of a dentist, who attacked two women in Sydney's inner city and was later shot dead by police, has shared an open letter on social media addressing him and revealing the "affairs", "secrets" and "abuse" she suffered in the couple's marriage.

The deceased, identified as Steven Lin, 41, burglarised a Potts Point apartment complex on March 3, 2026, while under the influence of drugs and attacked two women, Chloe Paul and Christine Campeau, as they were at home, as reported by 9News.

Following the incident, police sprung into action and rushed to the building and shot Lin with a Taser, which was ruled "ineffective", according to 9News. He was then shot with one round and declared dead at the scene.


The two injured women were rushed to hospital and underwent surgery for extensive facial injuries. Cassandra Lin, who had separated from her husband in early 2024, more than a year before his death, wrote in the letter that she was carrying the "pain of betrayal" but vowed to raise the pair's children in his honour.

In the letter, she further revealed that he had fathered a child without her knowledge, which had "shattered the trust" between the couple. "The truth is that my world came crashing down when I discovered the life you had been living behind my back," Cassandra wrote.

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A post shared by Cassandra Lin, RDH BOH OM (@iamcassandralin)

"The affairs. The secrets. The abuse. The child you fathered that I knew nothing about. "It shattered the trust I had placed in you and the future I thought we were building together. "The pain of that betrayal is something I'm still learning how to carry."

In her letter, his estranged wife described him as "complicated" and "flawed". "Standing here today, I'm reminded that people are never just the worst thing they've done, nor only the best," she wrote.

"You were complicated. You were flawed. You made choices that hurt me deeply and changed our lives forever. "I know you've heard it all before, so I don't say it anymore; I had to stand back and let you fight your secret war. A war which you lost in the end."

In conclusion, Cassandra pledged to take care of the children without him. "They deserve to know that their father loved them. Your story doesn't end here because it lives on in them," she wrote. "And while our path together didn't end the way either of us imagined, I will carry forward the responsibility we began together – raising the beautiful children we brought into this world."

Who was Steven Lin?

Steven was a celebrity dentist who was the author of “The Dental Diet". He had garnered a prominent social media presence with more than 250,000 Instagram followers.

According to 9News, he was a former principal of Helix Dentistry on the NSW Central Coast. He separated from his wife Cassandra in early 2024, and around the same time his involvement with Helix Dentistry ended.

Previously, it was reported that the 41-year-old had faced court for a raft of offences in recent years, including stalking, assaults, choking and breaching apprehended violence orders.