Vengeance is Mine — Gary Naiman

Scorpio, eighth sign of the Zodiac, symbolized by the scorpion, ruled by Mars and Pluto, the planets of violence and secrecy. . .      
     
After five years of prison and homelessness, Harry Langston has crawled from the depths to wreak havoc on the people that hurt him. Armed with incredible wealth and power, the specter known as Scorpio will soon confront the friends that betrayed him, the Bronx gang that tortured him, and the drug cartel that tried to kill him. Harry Langston has risen from the dead and declared war on evil.
    
Excerpts from Amazon verified purchase reviews:
    
"Effective second book in the series which vividly describes the protagonist's revenge on those who betrayed him. Actually, he takes it out on a few additional creeps who also contributed to his pain in Book One. I can see why he's an anti-hero, sort of a blend between Monte Cristo and Mr. Hyde." (AC)

"The best scene was Langston's confrontation with the Sons-of-Cristo gang leader. Looks like a possible series in the works. (LC)

"The best part was Langston's insatiable quest for revenge, his targets the drug cartel and Bronx gang that put him through hell in book one. The payback scenes were vivid, bloody, and decisive. A fast paced read which definitely sets the stage for the next book in the series." (MS)

"An effective second book of the series which opens one year after the sea battle against the drug lords. I liked the author's patience in setting up the demise of the three people that betrayed Langston. " (AC)
     
Gary Naiman has written fourteen novels. One of his books is being considered for a motion picture.