Let's set a few things straight before we get way out of hand:
Killing a mentally ill 11-year-old girl (or ANY 11-year-old girl) over anything, including burning Qur'anic text, is absurd, cruel, stupid, and any other word you can throw in there.
One thing to note, and this will prove that these people are not acting according to Islamic rule:
1) No child under the age of puberty is accountable for their actions.
2) People who are mentally disabled, no matter the age, are not accountable for their actions.
Since this girl meets both criteria mentioned, under Islamic law, she should not be held accountable and should be released back to her family.
Lastly, I have spent the last bit reading this thread appalled at anyone who thinks Pakistan has anything even slightly resembling Sharia law...just more proof that, in general, people are going to see what they want to see. IMO they are no better than the uneducated criminals who have misinterpreted the blasphemy laws in the first place. Anyone who has read my posts knows I am NOT an apologist for Islam. However, if something is untrue, it's simply untrue. Executing a mentally ill minor is NOT Islamic.
Judgement comes from all sides...it's important to know the facts or even try to discover the facts before ranting about the horrors of Islamic jurisprudence.