This is indeed a very painful one. No one lost a loved one to the cold hands of death and feel happy, I can understand the grief your family is passing through. But who are we to question the creator? He understands better.

I pray the almighty God will grant his soul eternal rest, keep and protect his children and also give the entire family the fortitude to bear such a painful lost.

It is well with you my dear, be strong and be comforted.