UPDATE: Big roundup here. Watch for further developments.
ANOTHER UPDATE: More here and here.
MORE: Some perspective from Bob Krumm:
Her list of enemies has a common pedigree, with the usual suspects now taking credit.
Allah points to graphic photos and video of the assassination scene, including this one taken just seconds before she was shot as she stands in an open vehicle campaigning. More here.
Arnaud de Borchgrave - Pakistani suspects galore (Benazir Bhutto assassination)