John Mahoney, who played the beloved dad on the sitcom "Frasier," died in Chicago last Sunday. At the time, his publicist said he passed away in hospice care after battling a short illness.
On Wednesday, TMZ broke more details of his cause of death. They reported that he had "multiple health complications." Those included brain cancer and lung cancer.
"Our sources say the "Frasier" star's official causes of death include brain disease lung cancer and seizures. We're told Mahoney also suffered from kidney disease and diabetes," said TMZ.
The British-born actor played Martin Crane, the father of Kelsey Grammer and David Hyde Pierce's characters, for 11 seasons of "Frasier."
Most recently, Mahoney a recurring role in "Hot in Cleveland."
Mahoney, who was in entertainment for 30 years, also had roles in many movies, such 'American President,' "Say Anything," and "Eight Men Out."
In 2000, he won a SAG award for his role in "Frasier." He was also nominated for two Emmys and two Golden Globes.
In addition to his roles in film and TV, Mahoney was also active in theater. He won a Tony in 1986.
A few months before his death, in October 2017, Mahoney said in a final interview that he thought he was able to beat cancer twice because of how much he loved being an actor.
"I wasn't going to let this cancer get me. I waited too long to do this," he told Fox News in a final interview about his life in October according to the Daily Mail.
Sadly, it was complications from cancer that eventually led to his death after a brief stay at the hospital. His friend Anna Shapiro said he was "fragile" at the time of his death.
"He was supposed to be having a routine procedure. But having just beat stage three throat cancer, I think he was just too weak," she added.
Mahoney was first diagnosed with colon cancer in the mid-1980s.
He told Fox News about that first diagnosis: "When I was told I had cancer, I said 'I don't care. Let's do whatever we need to do to beat it. It's not going to get me,'" he explained.
"And the doctors have always said that my attitude had a great deal to do with my cure."
In 2014, he was diagnosed with cancer once again. Doctors told he had stage three throat cancer.
"Doctors said it was inoperable," Mahoney said. "It sounded really, really terrible, like I was on the way out. And now, according to my doctors, I'm clear of it now."
Please say a prayer for everyone who knew and loved Mahoney. May God rest his soul. His fellow actors took to Twitter over the past few days to honor him and bemoan his loss.