There is hope to be found in the teachings of the Roman Catholic Church for those who die by suicide and those bereaved by suicide. The Church has denounced suicide in the strongest possible terms since the fourth century; true enough. But in the twentieth century, psychological sensitivity entered into Church teachings on the topic of suicide.
First, a brief look at history. In a fourth-century pagan world enamored of “heroic” self-destruction, St. Augustine condemned suicide, making it clear to early Christians that life in Christ requires virtuous living, not dying at one’s own hand. He held that the killing of oneself is the killing of a human being and is therefore prohibited by the fifth commandment–“Thou shalt not kill.”
Thomas Aquinas in the thirteenth century offered three reasons why suicide should be prohibited: the responsibility of loving and cherishing oneself, the responsibility toward community of which each person is a part, and the responsibility of recognizing God as giver of life with power over life and death.
The following seven centuries of Church teaching about suicide were characterized by an accent on law and penalty. In the sixteenth century, the Council of Trent maintained, for example, that the law forbids suicide and that no one has such power over his or her life as to end it. Up through the early decades of the twentieth century, in fact, the Church taught that Christians who broke God’s law by choosing self-destruction removed themselves from the spiritual jurisdiction of the Church and were to be considered, lamentably, as lost.
In 1994, though, the Catechism of the Catholic Church revealed a shift in thinking about suicide. While maintaining the traditional regard for the sanctitiy of human life and the human responsibility to “preserve” our lives for God’s honor and our salvation, the Catechism takes account of psychological disturbance, anguish, or grave fear which can diminish responsibility for the person committing suicide.
Moreover, the Catechism urges the faith community to pray for those who have taken their own lives and not to despair: “By ways known to him alone, God can provide the opportunity for salutary repentence.”
The Church’s contemporary teaching about suicide, put forth one year before my daughter’s suicide, continues to be a source of hope.
Mary's Shortcut: About Suicide Bereavement 
I was raised in the Roman Church. I wonder about an all forgiving God. If my loved one is in hell I’m left in a terrible quandary. to be in hell or heaven. this is no joke, my soul is torn apart!
Michael, I’m so sorry to hear about the suicide death of someone you love.For those of us left behind, suicide is devastating. But never give up hope in the merciful God who loves each of us in our weakness. That includes those who commit suicide. May you find peace.