The Marek Knows website that featured videos on programming an OpenGL game engine just went away. No warning or notification. I hope Marek didn't succumb to COVID-19. Does anyone have any information? I tried searching obituaries in Canada but didn't see anything about Marek. Don't know if he is alive or dead.

A little research ( /downloads.php - Warning: Potential Security Risk Ahead ) suggests that the site became compromised by malware. According to linkedin he has a position at Maplesoft and may be too busy to maintain the website properly.

https://ca.linkedin.com/in/mkrzeminski​

I have an email and a phone # if you want it thru pm. ( from a pdf that was publicly available )

@fleabay I was able to contact Marek and he said that he was just too busy to deal with the site at this time. Hopefully he will be getting a new site soon. He is okay and doesn't have COVID.