Dustin Diamond Cause of Death, Net Worth & Legal Troubles: Full Life Story

For a generation of TV fans, Dustin Diamond was the nerdy, lovable Screech on Saved by the Bell. But the actor’s real life after the show followed a much darker script—one that included a shocking stabbing conviction, a swift financial downturn, and a stage 4 lung cancer diagnosis that ended his life at just 44.

Died: February 1, 2021 (age 44) Cooper Health ·
Cause of death: Stage 4 lung cancer Cooper Health ·
Conviction: Stabbing incident, sentenced to 4 months ABC News

These six items capture the key biographical data with their sources, showing where his life took its sharpest turns.

What did Dustin Diamond pass away of?

What type of cancer did Dustin Diamond have?

Diamond was diagnosed with stage 4 small cell carcinoma, an aggressive form of lung cancer. The news became public in late January 2021 after he was hospitalized in Florida NBC News. According to Cooper Health (a medical institution commentary), stage 4 lung cancer means the disease has spread beyond the lungs and cannot be cured, though treatment can sometimes prolong life and improve quality.

When was he diagnosed?

His diagnosis was announced on January 21, 2021, and he began chemotherapy soon after NBC News. The timeline from that announcement to his death was remarkably short—just under two weeks later, on February 1, 2021, he died at age 44 Cooper Health.

What was Dustin Diamond convicted of?

What did the stabbing incident involve?

On December 25, 2014, Diamond was involved in a stabbing at a bar in Port Washington, Wisconsin ABC News. The victim was a 25-year-old man. Diamond claimed self-defense, but a jury found him guilty of carrying a concealed weapon and disorderly conduct while acquitting him of reckless endangerment ABC News.

• Concealed weapon charge: guilty
• Disorderly conduct: guilty
• Reckless endangerment: not guilty

The implication: the court saw enough evidence of a real altercation to reject the most serious charge but still held Diamond accountable for bringing a weapon into a bar dispute.

What sentence did he receive?

He was sentenced to four months in jail, ultimately serving 60 days TMJ4. Diamond was 38 at the time of sentencing ABC News.

The pattern: the incident effectively ended any chance of a mainstream comeback and drained his finances.

When and where did Dustin Diamond stab someone?

What year did the stabbing occur?

The stabbing took place on Christmas Day, December 25, 2014 ABC News. This was nearly a year before his conviction in 2015.

Where did the incident take place?

At a bar in Port Washington, Wisconsin, a small city north of Milwaukee ABC News. The location was a key detail in the trial, as witnesses described the scene as chaotic.

How much money did Dustin Diamond have when he died?

What was his net worth at death?

Estimates placed his net worth below $100,000 at the time of his death. The exact figure is unconfirmed because Diamond never publicly disclosed his finances TMJ4. He lived in a modest apartment in Florida in his final months.

How did he lose his money?

Diamond’s financial decline had multiple causes: legal fees from the stabbing case, declining acting work after Saved by the Bell, and failed ventures including a sex tape and a short-lived boxing exhibition. He also owed back taxes and had declared bankruptcy in earlier years.

The catch: a childhood fame that paid millions left him with under six figures at the end.

Did Mario Lopez get along with Dustin Diamond?

What did Mario Lopez say about Dustin Diamond after his death?

In interviews after Diamond’s death, Lopez expressed regret that they had not stayed in touch. According to TMJ4 (local Wisconsin station), Lopez told media that he and Diamond had discussed potential joint projects before the diagnosis derailed everything. “We were supposed to do a podcast together,” Lopez said.

Did they have any projects together?

Lopez confirmed that they had talked about working together but never got the chance to follow through. The two had not been close for years, but Diamond’s death prompted Lopez to speak warmly about their shared history.

Timeline

• January 7, 1977: Born in San Jose, California
• 1989–1993: Portrays Screech on Good Morning, Miss Bliss and Saved by the Bell
• 1993–2000: Continues role in spin-offs including Saved by the Bell: The College Years
• December 25, 2014: Stabbing incident at a bar in Port Washington, Wisconsin ABC News
• 2015: Sentenced to 4 months; serves 60 days TMJ4
• January 21, 2021: Announces stage 4 lung cancer diagnosis TMJ4
• February 1, 2021: Dies at age 44 Cooper Health

Clarity: confirmed facts & open questions

Key quotes

“The diagnosis came to light after he was hospitalized in Florida.” — representative of Dustin Diamond, reported by NBC News

“Stage 4 lung cancer is the most advanced stage and has spread beyond the lungs. It cannot be cured, although life can sometimes be prolonged and quality of life improved.” — Dr. Shersher, Cooper Health Cooper Health

For fans who grew up watching Screech, the real story is one of talent overshadowed by trouble—and a final act that no one saw coming. The pattern is clear: a promising child star faced legal consequences and health struggles that left him isolated and broke. Dustin Diamond’s trade-off between fame and stability is rarely starker.

Related reading: **Tony Todd Cause of Death, Age, and Legacy**

Frequently asked questions