Bookstores never seem to know where to put me on the shelves. But I do. I love my genre and I love those writers, so I am happy to be considered a crime writer. That's what I consider myself.

Smart people sometimes get stupid, but stupid people never get smart. Never. Ever. 'You can come down the evolutionary ladder,' Chon has observed to Ben and O; 'you can't climb up.

I was researching some of the modern-day figures that The Sopranos were moulded on. So many iconic Sopranos moments. James Gandolfini and Edie Falco had an incredible scene together in the kitchen of that house that looked like it was about to explode. That was an iconic series that changed the way we did television. It is also an extremely realistic portrayal of the mafia. Much more so than The Godfather. The Godfather, one of the greatest films ever, but let's face it, a romanticized version of the mob.

I have sat with the mothers who have lost addicted sons. I have sat with families of kids who have been killed in drug-related gang violence. I have been to the prisons. I have seen the effects. At some point in time, I felt I had to do something other than write a novel about it, that I needed to try to make some sort of contribution, at least try to make some sort of difference in the real world.

That sounds like Anthony Soprano. He has a point. I've said it before: if you're black and you sell dope, you end up in the big house; if you're white and you sell a large amount of dope, you end up visiting the White House. So it's a matter of race and it's a matter of scale, frankly.

My grandmother was from Guelph, Ont. I grew up playing ice hockey, I'm a massive fan. A great-uncle who was in the early days of the NHL played for the Chicago Blackhawks.

I never think about a movie when I'm writing a book, because I think only two things could happen and both of them are bad. You write a lousy novel and a lousy film.