[InChiefsHeaven]

Originally Posted by ThaVirus

Is that just a Catholic belief or something shared by all Christian denominations?

Per the Catechism of the Catholic Church:

2283 We should not despair of the eternal salvation of persons who have taken their own lives. By ways known to him alone, God can provide the opportunity for salutary repentance. The Church prays for persons who have taken their own lives.

This is a bit of a shift from the old way of thinking that if a person were to take their own life, they were 'probably' doomed to hell. But it was never an absolute thing.