Honestly I'm trying to figure out a way to save all 5 by sacrificing myself. Doesn't seem to be an option though.

Like TSoL said, this really is a big moral dilemma. It's very easy to pick the sacrifice one for the good of the many as the better option, but things are more complicated than that. What if that one person would go on to save many more lives and the others wouldn't?

More so though, it is easy to sacrifice one if that isn't a person you know or are close to. It gets much more complicated if it was like "Theyre are 5 people. You can save 4 by killing one. That one is your son." I know that saving 4 lives is generally the better option, but I mean, that's my son. And that one person who get sacrificed, who knows who that person is or how they influence the lives of others. If someone killed my son to save four people, I won't be able to look at it rationally, I'll just be all "wtf you killed my son that's not fair why did it have to be my son of all people why is" yada yada.

I would chose to save 4 people because 1 death is better than 5 theoretically, but I would be miserable for the rest of my life.