Ash

A major murder took place at the club, where two people were killed by a group of three or four individuals. Ash was the detective who had been investigating the case for about a month, but everything had been unsuccessful.
Walking toward that nightclub, his hands were hidden in his gray coat, and a light breeze blew, stirring his black hair.
Entering the noisy venue, it was filled with various colorful lights, loud music, and the smell of alcohol and cigarettes. Passing through the people who were drinking and dancing, he approached the bar and sat on a stool, beginning to scan the crowd. Ash only sighed and looked at the drink rack, recalling all the evidence.

He has scars down his back to his buttocks.