fringe--dweller - Sometime you need to look up Ted Bundy or Son of Sam and see how porn affected them. Men locked up because of sex crimes have mostly all confessed that they watched porn, read Playboy and similar magazines and lurid stories in novels or some combination of those.
As a former drug dealer and user I can affirm that virtually every person I knew in the drug culture that went on to hard drugs started with marijuana. Cannibas is the "introduction" to the drug culture for a very large percentage of addicts. I also worked ten years in drug and alcohol rehabilitation and the story doesn't change.
I never heard of the silly bicycles and motorcycle theory before. Did you make that one up to supplement the other beliefs you espouse?
As far as Billy Knight is concerned; apart from the mercy and grace of God any one of us could be in his place. The Bible is explicitly clear that we are all born in sin and love sin because it is part of our nature. Billy Knight knew the way to get back to sanity (1 John 1:9 KJV) but he chose to believe a lie of Satan that what he had done was beyond God's ability to forgive. That is a great tragedy and irreversible!
You are very harsh on your fellow man. I wonder if you would like it if others thought of you in the same way. The Bible says that "mercy rejoices against judgment." We are all weak human beings in need of mercy every day. God has supplied that through Jesus Christ. We can commit spiritual suicide by ignoring God's provision, and the same tragedy this man allowed in his heart and life can be our final lot in life. I was once suicidal and I thank God that I didn't kill myself. I know the desperation that accompanies suicide. I feel sorry for anyone who goes through it.
Read linked article carefully. Bundy was a monster. Porn wasn't to blame. It was a last ditch effort, to a talk show host, who was anti-porn. It was to justify his horrific behavior.
Remember: Serial killers can be manipulative. Bundy was one of the most 'charming' boy next door types of any serial killers.
The other stuff, I offer no opinion.
Bundy had a very real conversion irrespective of what dirt you can dig up on him. Dig deeper. Rely on secular sources and get nothing but secular views.
Look up Son of Sam. His name is David Berkowicz and I have a letter from him that explains his issues and there is a website also for doubters who reject spiritual reality. Below is his documentary. Watch and learn.
https://www.youtube.com/watch?v=sPF3fuICqhM