I've read the Carlo books - 'The Iceman', 'The Butcher' and 'Gaspipe', whilst I genuinely enoyed reading them all I do think they were more like stories and his own opinions as oppose genuine well documented fact. I appreciate that in the criminal underworld it must be very difficult to ever truely convey anything as gospel truth but ultimately when it came to these 3 books there were too many inaccuracies. As said previously though all were still a good read.