John Eimen, a former child star known for his guest spot in "Leave it to Beaver," died Friday, Nov. 21, a representative confirmed. He was 76.
Eimen died at his home in Mukilteo, Washington, from prostate cancer, publicist Harlan Boll confirmed to USA TODAY. Eimen learned of his cancer diagnosis in September.
Prostate cancer is the second most common cancer in men, affecting 1 in 8 men in the U.S., according to the American Cancer Society. In May 2025, it was revealed that former President Joe Biden had been diagnosed with what his office called an “aggressive” form of prostate cancer, bringing attention to a disease that is diagnosed in hundreds of thousands of American men each year.
Here's what you need to know about prostate cancer.
The National Cancer Institute says that prostate cancer makes up about 15.4% of all new cancer cases and estimates that there will be 313,780 in 2025.






