So, get into a relaxed state and visualize how the worst things happen to your target and he/she dies.

Then chant, while you are visualizing, three to six times the following:

So now it's your time to leave. 

I say so, so obey me. 

Go away. Leave this planet.

No one likes you, suicide please. 

My way - you die. Now.

You are dead, blood spread. 

So mote it be!