I am so sorry for your loss. May it help you to know that death was not in God’s plan, but Adam sinned, so sin and death entered into the world, so now we all sin and die and unforeseen occurrence befall us all as Ecclesiastes 9:11 says. Yet because of God’s love and knowing the pain that death brings to famiies, he will get rid of death forever, never to return and he will also bring back to life all those in his memory. I hope these facts bring you comfort.