To be honest, if it were me on Kindaichi's shoes I would wait for the culprit to succeed then investigate afterwards but half of my heart tells me that what Kindaichi did in this episode was also right. I have come up on a prime suspect after watching this episode but I still have no idea the method that they used on the previous two incident. With what happened at the end of this episode, the next one has become highly anticipated. I'm looking forward to seeing how Kindaichi puts all the pieces together.