Is the Higher Power Sadistic?

I know that this sounds like blasphemy, but I have to get this off my chest. What up with needless suffering. How can a God be so loving and so vengeful at the same time. My friend, Red, calls me weeping her heart out because her 4 month old baby cousin has been diagnosed with leukemia. The only crime that this child committed was being born. How is this fair? How is this love? In the short 4 months of life, she has lived and been loved. What is more pure than that? All I can say is God, give her a break. Give her a chance to live, to exist in love a little longer, to know that she was loved purely without fail. Please God, there is enough hurt in the world. Could you just bless this little speck of mankind for a little longer. Am I asking too much from a God that created the heavens and earth and everything in between. I think not.