David Labrava has been left "broken" following the suicide of his teenage son.
The 'Songs of Anarchy' actor has urged his fans to "cherish" their loved ones after 16-year-old Tycho took his own life earlier this week after battling with depression.
David shared a number of pictures of himself with his son on Instagram and wrote: "Never in a million tears would I think I would be posting this. This is my boy Tycho. He took his life a couple of days ago at 16 years old.
"He suffered from a depression we couldnt see because he was a happy young kid. Communicate with your loved ones, there might not be any signs. Cherish them. I am broken.(sic)"
The 55-year-old star also shared a link to a GoFundMe page set up in Tycho's honour, with proceeds to be donated to a cause supporting those with depression and bipolar disorder, as it was the teenager's last wish.
The FlyHighTycho page said: "On May 5th, 2018 Tycho Spelis Chiusano decided to end his life. He was 16 years old. He quietly suffered from depression for years and didn't know how to ask for help.
"An amazing and beautiful soul, Tycho was extremely intelligent, athletic, loyal, and a sensitive friend. He was full of life, constantly smiling, and had a knack for making others laugh. Tycho loved his family and friends. This is how we will forever remember him!
"Never FORGET: Always be kind and have compassion for others. Never spread rumors and learn to communicate with each other.
"Tycho's last wish was 'give all of my money to a depression and bipolar organization' ...so, that's exactly where it's going!
"Please join us in our fight to raise awareness of the signs of depression! We need to honor our friends because we never know what's hiding behind someone's smile.
"100% of your donations will join Tycho's and go to a depression and bipolar organization.(sic)"