Once that you've decided on a killing
First you make a stone of your heart
And if you find that your hands are still willing
Then you can turn a murder into art
There really isn't any need for bloodshed
Just do it with a little more finesse
If you can slip a tablet into someone's coffee
Then it avoids an awful lot of mess
Because it's murder by numbers
One, two, three
It's as easy to learn
As your ABC