Mamoru Ozaki

The Kaimei High School baseball club's shortstop who is questioned as a potential suspect in the "Glass Man" investigation. He follows a very precise running course every morning, which coincidentally had him pass through all the buildings that had their windows broken.

Manga Debut: Chapter 69 (The Glass Man)
Anime Debut: Episode 33 (The Glass Man)

(Source: SKET Dance Wikia)