I dont have anymore information other than this as I have an Automated Google Search for "Systemic Capillary Leak Syndrome" and this hit my inbox.  I do not know this person or if they were taking any treatment such as IVIG.  Decided to post as a caution to stay diligent in avoiding Covid.  Prayers to his family and all of you.

https://losangeles.cbslocal.com/2021/01/18/bayron-salguero-south-pasadena-police-assistant-dies-covid-19/

https://www.gofundme.com/f/bayron-salguero-adventure-is-out-there

I also found out about this case the same way, and after making a donation to his family through GoFundMe -- and my grown children also made donations -- I made some inquiries and it turns out that this young man had decided not to subject himself to monthly IVIG treatments.  Therefore, we will never know if his Covid-related death could have been prevented, but he was obviously at great personal risk.