Are you shitting me?
I could have come up with this "study" sitting on my couch with my thumb up my ass. This is brazen warping of irrelevant statistics in a weak attempt to "prove" a point by tricking your audience. Is that all you've got?
Of course more Americans are killed by illegal aliens than are killed in Iraq. More Americans are killed by almost anything than are killed in Iraq. Something like 40,000 Americans die in car accidents every year. Do you really think this number says anything worthwhile about driving, or war? In 2003, there were 3,306 unintentional fatal drownings in the United States. Clearly bodies of water are more of a threat to us than the illegals.
There are 300,000,000 Americans and 152,000 of them are military in Iraq. I'd say "do the math" but you suck at math.