Life isn't fair

It all started in the middle of December.  I was at work when I got a call from my mother in law that her mother was being taken to the Emergency Room because she was dizzy and had a headache.  I was staying optimistic hoping it was nothing major.  That night she was released from the hospital being diagnosed with Vertigo.  The Doctor told her if the meds they gave her didn't work that she needed to see a neurologist.  Long story short, she went to a neurologist where she found out she had a tumor on her brain stem.  After more tests she found out the cancer was pretty much everywhere.  This was devastating news for everyone.  No, she's not my grandmother by blood, but she is OUR grandmother.  I've loved this woman like my own grandmother since the day I met her 12 years ago.  She is the most selfless, thoughtful woman there is!  I just don't understand how people can invent cars that can navigate us anywhere, and phones that can do anything we want, but there isn't a cure for cancer?!?  How does this happen?  Cancer is evil!  Cancer sucks!  I HATE CANCER!!!  My heart is broken but at the same time I know that the big man upstairs has a plan for everyone.  We can't plan our lives, because HE does.  I know everything happens for a reason but it's hard to justify it sometimes.