The performer was diagnosed with the disease in 2016 and only shared his diagnosis with close family and friends.
Derrick told theTimeshe asked Chadwick what he meant, “but then realized that he was tired.
He was ready to go.”

Credit: Leon Bennett/Getty Images
And the next day he passed away.
Chad was gifted, he said, noting his brother’s artistic abilities.
Hes probably the most gifted person Ive ever met.
I have been trying to remember Chad and not Chadwick, Kevin, 48, said.
And theres just been a lot of Chadwick in the air.
He continued, A lot of people think making it means becoming an A-list movie star.
I didnt force that.
He always did his best, Kevin added.
His best was incredible.