And maybe some personals reason on his side, not sure about that but I think he had some regrets on what he did to me.
The amount was so big that it would be acceptable for him to sacrifice part of the loot so he has both his conscience right and feel less stressed that everybody chase him.
Nope, I pointed out earlier that ethics went out the window once he stole your btc. If he was a moral person and wanted to right the wrong, he would have returned the whole thing. You either return all of it, or none of it. But the fact that he returned just a small fraction under the condition that you LOCK the previous thread means that he does not want the investigation to continue, in fear of being caught.
So returning some is equally as immoral as returning none.
I disagree.
Depends on his moral alignment.