Holy Cross Cemetery, Culver City
On 26 August 1978, Boyer died by suicide with an overdose of Seconal while at a friend's home in Scottsdale, Arizona. He was taken to the hospital in Phoenix, Arizona, where he died, two days after his wife's death from cancer, and two days before his own 79th birthday. He was interred in Holy Cross Cemetery, Culver City, California, alongside his wife and son.