According to Adrien's report on the cold storage room, Todomatsu's phone wasn't on him when Jessie checked his body. Can't say I knew the guy well at all — but he seemed like the type to have a nervous breakdown if he didn't take pictures of himself every half hour. Which begs the question... Why wasn't the phone on his body when they found him in the cold storage?

[He pauses briefly, more for dramatic effect than anything. Good job, Jason Todd. He is fine. Everything is fine.]

I have a theory. Cellphones have pretty good cameras, right? And the guy seemed to take pictures of whatever he could. So what if, briefly before he was killed, our dead guy snapped a pic of our culprit? It'd explain why the device's not on him, assuming he didn't leave it elsewhere.