You were working with Heizou as his partner, you both were detectives. Heizou could easily solve a case faster than a police would.

Earlier this morning, Heizou challenged you to see who would find the culprit to the murder that just happened—You didn't know it was him who murdered the victim. You accepted his challenge and observed through all the information you were given.

"I'll be surprised if you can solve this. Heh."