I believe in eternal torment, as probably most of us do here. But this guy lays out a pretty good argument for annihilation.
Regardless of what points this video makes, there is nowhere in scripture that teaches annihilation, not even hints of it.
The emphasis on the phrase "everlasting fire" is on those who will be in the fire. Otherwise, once you throw the last person in, there would be no need for the fire to continue.
The thinking of All of those who have committed suicide, is that they would cease to exist at the time of death. If annihilation were true, they would be getting what they wanted. No, they have sinned against an Holy and Righteous God and rejected His provision for salvation and will be eternally separated from God, conscious and existing, in the lake of fire. This is what scripture teaches.
Annihilation is just another false teaching and should be recognized as such.
"And the devil who had deceived them was thrown into the lake of fire and sulfur, into which the beast and the false prophet had already been thrown.
There they will be tormented day and night forever and ever."
And
"Anyone whose name was not found written in the book of life was thrown into the lake of fire.