Yes.
But I'd donate half of it to starving African children or other people (more than could be killed with my bomb) in desperate need. Besides, a person who designs a weapon isn't really responsible for what happens when someone uses it to kill people.
That last sentence sounds ethically dubious. A knife has many uses so is arguably neutral but a bomb? Enabling other people to do harm implies culpability.
And if your bomb was detonated during the Nobel award ceremony, or at a TED conference, killing a few brilliant minds who could save a hundred times as many children?
