Max Heard died in his bed in December 2016, half a year before the death of his father in a hotel room on Friday.
The 22-year-old 'died peacefully in his sleep', according to an obituary written by his mother Sharon, and 'was in deep grief of not having a father participating in his life.'John and Sharon Heard also shared a daughter, Annika.
The news comes nearly one month after the 49-year-old Everybody Hates Chris alum claimed that he was inappropriately touched by a male Hollywood executive at a 2016 event.
Home Alone actor John Heard died six months after his estranged son passed away in his sleep.
John and Melissa Leo, who were in a previous relationship together, has a son and named him John Matthew Heard.
The 72-year-old was found dead by a maid in a hotel in California on Friday, according to family sources.
“Now Brad, I don’t know if you heard about this, but the CMA has given us some ‘guidelines’ with specific topics to avoid,” Underwood told her cohost.Jennifer Nettles and Kristian Bush reunited at the 2017 CMAs to present the award for Vocal Duo of the Year.