Let me clarify the mystery for you:
It is true that a vaccinated person, if infected, can spread the virus. But, a vaccinated person is significantly less likely to be infected in the first place, compared to an unvaccinated person.
There are two distinct allegations which, when put together, put an interesting twist on the story:
The dead guy apparently had received about 300K the day before his death; and
The wife of the Swiss guy bailed him out of jail with 300K from unknown sources.
Occam’s Razor suggests that the wife got the 300K from the dead guy.