It's hard to believe it's almost been six years since the death of beloved actor and comedian, Robin Williams.
Zak, who is the oldest of Robin's three children told People how he and his siblings, sister Zelda and brother Cody will honor their dad next month on Father's Day in addition to bringing more awareness to mental health issues.
TW: this article contains depictions or discussions of suicide and may be triggering to some readers. If you or someone you know needs help, please call the National Suicide Prevention Lifeline at 1-800-273-TALK (8255).