I could wish it were true, but it's been stated many times that our guys were NOT the first to arrive.
He died before our guys got there.
What the Iraqi soldiers may have done, who knows?
Maybe they whupped his ass with their shoes to show their contempt, if so, good for them.
Since we now supply them with uniforms that match ours (is that REALLY a good idea in the long term?) anything they may have done might be mistaken for our guys.
But I doubt this claim has any factual basis at all.
As to disposing of the body, I want his head kept in a jar, and his body disposed of at sea, so that it can never be turned into a terror shrine.