Cormac Roth, a musician and the son of actor Tim Roth, has died aged 25, less than a year after being diagnosed with cancer.
Roth "died peacefully in the arms of his family who loved and adored him" on October 16, his family said in a statement published on Monday.
They said he "maintained his wicked wit and humor" to the end.
"The grief comes in waves, as do the tears and laughter, when we think of that beautiful boy across the 25 years and 10 months that we knew him," the family said.
"An irrepressible and joyful and wild and wonderful child. Only recently a man.
"We love him. We will carry him with us wherever we go."
Roth was a guitarist, composer and producer.
He had revealed he had been diagnosed with stage 3 germ cell cancer in an Instagram post last year.
"It has taken away half of my hearing, 60 pounds of weight, my confidence, and will continue its murderous path until I can manage to stop it somehow, and kill it," he wrote in July.
"But it hasn't taken away my will to survive, or my love of making music."
He explained that, more specifically, he had choriocarcinoma, which is a rare and aggressive tumour.
In his July post, Roth said he had been through high-dose chemotherapy and endured transfusions, surgeries and transplants in a bid to treat the cancer that ultimately claimed his life.
"Life is short. It is chaos. And you never know when it's going to be you," he wrote.
"Be well and go to the doctor."
His last post on Instagram was on August 17, when he thanked his supporters and encouraged them do what they loved.
Roth's father has starred in films such as Reservoir Dogs, Pulp Fiction and The Incredible Hulk.
ABC with AP