Peter Kageyama 
Midnight Climax [EPUB ebook] 

Kats Takemoto, the nisei private detective from Hunters Point, returns to investigate the murder of a young Chinese girl, killed in a covert CIA brothel in the heart of San Francisco. Her family, members of a Tong, a powerful Chinatown gang, demand vengeance that threatens to start an all-out war in Chinatown unless Kats can discover the truth behind the slaying. Along the way, he will discover a personal connection to the suspected killer, a fellow veteran who was tortured and experimented on, turning him into a lethal weapon and a ticking bomb. Kats and his friends race to find this soldier before the government and the rival Tong gangs spiral into more bloodshed.