Examining testimonies can be telling, especially in the case of those who "fall away". While not always indicative, there are usually signs of a lack of real conversion.
"Once again you might expect that - given that my father was one of these Presbyterian ministers - I grew up with strong religious feelings and convictions and once again I have to say, not a bit of it."
"I heard every word of the Bible and I believed every word of it but it had no spiritual effect whatsoever."
"I learned all the theology from the Westminster Confession and the Shorter Catechism and I believed it to be true but I couldn't see any reason why anyone would want it to be true."
"I now well recognise the intellectual and emotional appeal of the Christian religion but I have to say the version of it that I was taught may be a little different from the one you believe in. I should also say that this rather uncompromising version of the religion produces some truly admirable people and I am not one of them."It's clear some attempt was made to bring Ken up "in the way he should go". But it's also apparent he had no fear of God. No understanding of sin and God's Law, of grace and the beauty and goodness of God.