No "cause" has ever been established for any crime by any criminal --- because criminal behaviors, nor any other behaviors, do not have "causes." They have motives. I don't think you understood what I said regarding what must be the case for A to be deemed the cause of B. That condition is never satisfied for any alleged "cause" of some particular behavior.
There is precious little expertise to be had in that field. It is a chaotic discipline with no accepted organizing theory and with a multiplicity of "schools" proffering their candidates for that role --- none of which can reliably predict individual human behavior.I suspect that you yourself may lack psychological expertise.
The concept of cause and effect is only applicable to deterministic systems. Human behavior is non-deterministic. In their efforts to appear "scientific" psychologists invoke an explanatory construct, cause and effect, inapplicable to their subject matter.