Wow! What a very sad series of events. I am so sorry for your husband's loss of cognizance and his friend's death. I will send a prayer your way, if that is ok with you. I do believe viral shedding is a strong possibility for what you just described.

My husband (also unvaxxed) had a visit from his out-of-town sister who flew in for the day in early 2021 just a few weeks after she got her 2nd Pfizer jab. He hadn't seen her in 2 years. I begged him not to go, telling him I was fearful of 'viral shedding' from her recent vax. He agreed to see her only if they sat outside at the restaurant. It was a windy, cool, early spring day. He sat next to her and had a several hour visit and lunch. 4 days later, hubby fell ill with a fever and constant coughing that would just not quit. I gave him Ivermectin and the whole protocol too, but after 2 weeks of this and no improvement, I was forced to take him to the hospital for oxygen and cough relief as his O2 was falling below 90. Of course they said he tested positive for Covid and was put on oxygen, steroids and Remdesivir. The doctor wore a space suit to visit him. We were not allowed in to see him. I was so, so worried. I was sure that was going to be the end of him. It was touch-and-go there for a while, but that is a whole other story for another day. He finally was released and was kept on oxygen for about 6 weeks after coming home.

There definitely is proven viral shedding for some period of time following a vax or a booster. Pfizer was actually in trials to create a 'self-spreading' vaccine to do exactly that. I have a copy of the study somewhere in my giant file folder.

These crimes against humanity just cannot be left unpunished!