AP's caption for that one says: "An effigy representing Libyan Leader Moammar Gadhafi, marked with a Star of David on its forehead, hangs from a flagpole in Benghazi, Libya Wednesday, Feb. 23, 2011...." (Thanks to Ravi)
That one throws in a Hitler mustache and horns, along with the big Star of David, to cap off an Islamic crescent and star on the protester's forehead.
We saw this in Egypt during the protests against Mubarak as well. It is an indication of the pervasiveness of Islamic antisemitism: when these protesters want to portray someone as a demon, they paint a Star of David on his picture. This also shows the naivete of those who insist that the demonstrators in Egypt, Libya and elsewhere in the Middle East are pro-democracy secularists. They may be pro-democracy insofar as they want the will of the people to be heard, but given their worldview, their frame of reference, their core assumptions about the world, if that popular will is heard, it will likely result in huge victories for the Muslim Brotherhood and similar pro-Sharia groups.