Stealing Souls, Satan can do it..can we? Options

I am curious, not because I am a satanist but because I really would want to do this. I always here of people (usually satanists) selling their souls or making a pact with a demon or something but is it possible for another human to infact give away their soul to another? My reasons for wanting to know your opinion are quite private but I just am wondering what you think.

Stealing someone's soul is possible but involves high black magic which you will not find that easily in any way.You can ask some demons about that and if they find you worthy they may tell you about the methods.Method generally involves ability to destroy your victim and then capture its soul by means of a special ritual.Accounts of this practice can be found throughout history of all parts of the world.