Why does GOD do this?

Just like you cope with death, etc. by looking at scientific facts as a reason for it occurring, other people look at it as God's will for the reason. There really isn't a different, other than the fact that they rely on faith, and you on tangible, scientific data.

What's a difference between a stereotype and a generalization?

Stereotypes are created through a lack of understanding.

Generalizations are based on fact.

Stereotypes are wrong and ignorant.

Generalizations are true and logical.

Titus hit my point exactly

Asking why God killed your friend is like subscribing to a stereotype. It's stupid, illogical, and unprovable. Using that sort of thinking is akin to saying everyone from the Middle East is a towelhead terrorist. Are you that provincial?