Who is Vince Masuoka from Darkly Dreaming Dexter and what is their importance?

Vince Masuoka is employed as a lab tech at the Metro-Dade Police Department. He and Dexter work closely together, as their work often applies to the same cases. Vince is described as an awkward man, who often makes crude jokes in order to fit in with his co-workers. He also harbors a romantic interest in Deborah. Dexter is drawn to Vince because he senses a kindred spirit.