It's common when it's my (the speaker's) dead body, not someone else's body, particularly when you refer to them by name.

I agree that the first-person usage is more common, relatively speaking.

How often have you seen that idiom after some person's name?

Often.

But either way I don't get why that usage has triggered you. It's not like he's advocating for someone's death; he is clearly conveying his view about Ballmer's desire to influence Microsoft and the degree of conviction he believes Ballmer has in this regard.

Perhaps if English is not your first language, this word usage might seem strange or unpleasant. I assure you it's not.

With these types of idioms the subject is always going to be a person's name, or a personal pronoun. If there's no name attached it's most likely referencing an unnamed pet or wild animal.