Tsukimizuki Rikai no Tantei Satsujin - Vol. 3 Ch. 12 - Veracity

[Milanin]

... I really wonder about some things in that whole wrap-up, but I'll let sleeping lions lie.

Other than that... My guess was correct, huh... The person who was with him that day and "lost sight" of him...

 

[guimaster90]

This manga sucks