I take your post to mean that the coroner WAS assigned to Breitbart's autopsy.
Further, I take it to mean that this coroner had proof of murder.
Further, I take it to mean the Breitbart scratched the words OBAMA DONE IT on his stomach.
In other words, YOUR POST is PROOF that Obama killed Breitbart.
Q.E.D.
You’re always thinkin’ aren’t ya Laz. :)