If a person was fully aware of what they were doing, with intent to end their life(committing suicide), then they went to Hell.
But only God knows that fact.
Proverbs 29:2, "...when the wicked beareth rule, the people mourn."
Acts 4:12, "Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved."
Hebrews 13:8, "Jesus Christ the same yesterday, and to day, and for ever."
Revelation 3:11, "Behold, I come quickly: hold that fast which thou hast, that no man take thy crown."
Matthew 28:20, "...I am with you alway, even unto the end of the world. Amen."