Matz 
Killer, The: Affairs of the State [PDF ebook] 

Caught and put to work as an on-call assassin for the French government, Killer has to adjust to working with a handler, his new partner Nicolas, a former special forces operative, and living life as a civilian. A network of city-wide corruption awaits, getting Killer even more involved in the midst of an escalating crisis, when he just wants to get back to his nihilistic lifestyle. But, as feeling for a coworker arise in his day job, will Killer be dangerously distracted, torn between two identities?Collects The Killer: Affairs of the State #1-6.