Sense Sonnet - Chiller

Any Means

Mentally retarded since birth,
My sister now was 10 years old.
She thought I was the best on earth,
And would do whatever I told.
Some friends and I devised a plan
To further the aims of the cause.
We built it in a short time span.
I told my sister, that because
It was a secret, she should wear
It underneath her dress, when she
And Mom went to the city square,
Where lots of people there would be.

She walked into the square with Mom,
And I detonated the bomb.