Mightier than the Sword

When cartoonist Charlie Ellis is stabbed to death in his studio, everybody suspects a political motive. For his controversial cartoons had placed Charlie Ellis in the crosshairs two years before.
But Detective Inspector Helen Shepherd is sceptical. For why did Charlie Ellis not even try to defend himself and why did he open to door to his own killer? How did the killer manage to sneak past the police guard at the door in the first place? And what is the connection between Charlie Ellis and the other fourteen men in the Greater London area who happen to share his rather common name?
With the help of Simon Westmoreland, a handsome chief inspector from the Counter Terrorism Command, Helen finally manages to shed some light on the murder of Charlie Ellis.

This is a short mystery of 12200 words or approximately 42 print pages.