We do not know this.
BTW - Calvin (a respected name among Baptists) is strongly against saying that we can know this. To use the doctrine of predestination to say that others are going to Hell is what he calls
imprecation, not
preaching (which is its proper use). So ***if ***they are Calvinists in their theology, he witnesses against that idea.
Conversion to Christ may come very late in a life - for men live, and die in very different circumstances, so that some are converted to Christ only at their last gasp. God sees their conversion - He has caused it all. Men OTOH may know nothing of it. Yet it has occurred. So what men say of the man, may be far astray from the truth. So he may be in Heaven, when men on earth have no doubt he is in Hell.
Many martyrs have been converted at the last moment - St. Adauctus was converted so late, that though he suffered with others, his very name is unknown - except to God. “Adauctus” means “added on” - he was watching martyrs die, was converted, confessed Christ, & was added to their number. Before his conversion, many Christians might well have thought he was damned for his lack of faith.
St.Moses the Black, hermit & martyr, was formerly a robber. Not likely (his victims might well think) to be a Christian, or a martyr, or a Saint. But he is all three.
And there is Saul of Tarsus - IOW, St. Paul, Apostle to the Gentiles.
God converts whom, and in the way, & at the time, & for the reasons, that He wishes. Onlookers need know nothing of His action in a human heart - but He knows it. What those others think, could not matter less. We cannot know - even about ourselves - whether we shall fall or stand; those who stand cannot pride themselves that they do, and that others do not: for if they boast that they stand, who knows how low God may bring them ? If we do not know that we shall not fall - how can we say that others have fallen or are damned

? God has kept many things to Himself, & not made them known - so how can they be known ? Since He shows His goodness through His Saints, & “approves [them] by many mighty works”, we are not left in ignorance about them - so their presence with Him, is not unknown to us.
We are thus ignorant of whether:
- someone is going to Hell
- someone is damned
AFAIK, the most we can be sure of - not with absolute certainty, but with moral certainty - is that in someone’s behaviour is embodied something damnable, something that if continued in will damn them; which if it is in us, & if we continue in it, will damn us. Hell is not about other people - Hell is about each individual, and the beginnings of Hell that are in that individual.
Who is Bernie Carbo ?