Maybe we´ll see Kindaichis true face soon? Yes, he´s indeed a serial killer. How he always managed that someone else did "it", "confessed" and he manipulated them so far. He´s such a genie. So, in the end he´s even better than Takato?! XD
But I wonder. Was there really nothing special during that time gap of 20 years? Didn´t he even solve not a single case there? What did he do in that time frame. Only normal things?
And now, the 'curse' is {unforunately} back on him and he stumbles on murder cases all over again. ^^'