I have been trying to find the title of this manga for almost 7 years.......:( But still, NOTHING!!! :scream: I'm going crazy!

Maybe someone here has heard of it, at least I really really really hope so.
I remember everything, but the character's names!!!

The main character is a 17 years old blonde guy who goes to high school. The story begins with the murder of a girl in the park, which other similar murders follow. Strangely, there is always a ring made of paper left in front of the girls.
Anywho, the cops start to investigate, and that's where the second main character comes in. A dark-haired, really hot chick, and she's 7 years older than the guy. Somehow, they end up working together.
Something else I remember is that the blonde guy always gets visions when he touches something. He also has a friend his age who works in a bar as bartender. Oh, and the chick's former partner is in jail...I think. I'm not sure, it was a long time ago.

Anyway, anyone have any leads? :( Or know where I can get more help to find it?