() This is okay, but doesn’t compare to Spilled Milk by Randis.
It follows a drug dealer, Jared, who ends up letting his sister drown in bathwater because he was too high to check on her. He sets out on a quest, (instigated by another drug dealer who wants Jared to work for him,) to find the person who sold him the heroin that caused this tragedy.
This book doesn’t end, there is another one (or two?) that follow. I don’t really think it’s worth reading the second. It is interesting, but a bit over the top with the plot.