Detective Danny messer who is a forensic scientist, brings his Staten Island roots to the New York City crime lab. Ge grew up in a family constantly under surveilance, Danny grew his own hyrid ethics, blending the world of law-breakers with the world of law-makers. Mac personally chose Danny to join his team, an honor and responsibility he attempts to live up to everyday. Danny is described as "passionate, with an urge to question all that is corrupt… a kid from the streets who studied and made good for himself".