Carl Miller had spent most of his career at a think tank in London, writing reports and giving lectures – the stuff most academics do.

Then, a few years ago, Carl got a call that would change his life forever. The caller, an old colleague, had stumbled upon something that scared him: an online marketplace where you could hire a hitman. 

Suddenly, Carl was looking at a list of hundreds of names. A list of people that somebody, somewhere wanted dead.

So Carl started calling them.

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