@OP
Given full insight at the moment, I'd fuck the individual, either time, for the greater good: unless the group were kids, or black, or muslim, liked Trump, or owned Apple products. . . you know, those unsavory types.
Seriously, though-- in my opinion being passive when you can clearly see that your inaction will cause great harm is selfish and wrong. You gotta make the call that seems best, and if you end up bearing a burden of guilt, that's the cost of being a member of a civilized society.
Given full insight at the moment, I'd fuck the individual, either time, for the greater good: unless the group were kids, or black, or muslim, liked Trump, or owned Apple products. . . you know, those unsavory types.
Seriously, though-- in my opinion being passive when you can clearly see that your inaction will cause great harm is selfish and wrong. You gotta make the call that seems best, and if you end up bearing a burden of guilt, that's the cost of being a member of a civilized society.