I had a very short interaction with light_warrior several months ago when was very kind to offer to translate an English language scam accusation thread I created.

He helped because I asked for it to be translated in to Russian because of the specific type of scam Russian language speakers in the US and elsewhere were being targeted with: SpireBit Crypto Investment Scam Targeting US Based Russians and Russian

Here is the thread he translated: SpireBit - мошенничество с криптоинвестициями

This is very sad news. I can only say light_warrior was a very nice and helpful member of the forum, my condolences go to all of his family and friends especially to his daughter.