U.S. National Suicide Prevention Lifeline 800-273-TALK (8255)
National Suicide Helpline UK 0800 689 5652
His HN profile was also just his name https://news.ycombinator.com/user?id=chrisseaton
I wish the best for his family and friends over the next few months. This will be a tough holiday season for them.
You never know what is going on in someone's life and no clue what was going on in his but I think working in tech is harder than people recognize / give credit (and may not have any bearing on Chris, I am not trying to speculate).
Please talk to someone if you are feeling hopeless.
U.S. National Suicide Prevention Lifeline 800-273-TALK (8255)
National Suicide Helpline UK 0800 689 5652