It is important to remember that God is Infinitely Merciful and that He is outside of time. If you are grieving the loss of a loved one to suicide pray for that person to die a happy death right now. St. Padre Pio said that he could just as easily pray for the happy death of his great grandmother as for someone who is dying today because God is outside time. At the moment of a person’s death God can see the future prayers that will be prayed for that soul and apply them in the person’s moment of greatest need.
To read more about the Lifeline Against Suicide Team (L.A.S.T.) read my blogpost about it: