With help from this fansite thread, we make that 284 deaths in the Song Of Ice And Fire books so far.
A Game Of Thrones - 54.
A Clash Of Kings - 72.
A Storm Of Swords - 97.
A Feast For Crows - 23.
A Dance With Dragons - 38.
Which is just yet more evidence to support the view of George RR Martin as the biggest troll in literature.