Dear dad

"It's 2014 and the Ice Bucket Challenge is everywhere. You know, people posting videos of themselves dumping freezing ice water over their heads to raise money for ALS research. It's weird, everyone suddenly talking about ALS, because Sam's family has been dealing with it ever since his dad, Gregory, was diagnosed three years ago. Now everything has changed. His dad, a brilliant lawyer, stopped working, then stopped walking, and now he can't even...