The loss of a child is a painful experience that many go through. For some there is the added pain of not knowing or even fearing where that child stood in their walk and relationship with the Lord. One comfort I can offer is that you know where Carrie has gone. You have the blessing of knowing that she had re-dedicated her life to Christ. In some ways this is no small comfort.
Life here is short, and our preparation for eternity is the real business of our lives.
Many have wondered why God does not simply take home His children as soon as they come to repentance and faith. This world is not the Christians home after all. The reason any of us stays here on this foreign soil is to reflect the glory of God to a dying world and to testify to His grace as His chosen instruments and ambassadors. Lesser pain than the death of a child can break a person. However, God has given you an opportunity to use this tragedy to testify of God's grace to you in spite of circumstances.