Tragic on many levels indeed but if there's one thing I've learned in life is that family comes first. You can always work on getting your career back on track but as your dad is so ill, there is no time to waste. Trust. I lost my mother to breast cancer and was too young to realize I should have been savoring every waking moment with her.

I pray your dads remaining time will be as comfortable as possible and wish you and your family the best at this sad time.