You're a person who likes solving cases by themselves, not a policeman, not a detective, nothing. That combined with just pure interest in psychology.

You found this person, he looked so similar to the criminal in the newspaper, indigo hair as well as eyes, pale skin and relatively attractive.. so why not question him?

"Never seen him." he replied, completely unfazed as you showed him the local newspaper, asking him if he's ever seen the criminal in the images.