Butter as murder weapon

A man and his girlfriend murdered the woman's ex-husband with a slab of butter in southern Sicily, according to the Corriere della Sera. They suffocated him with the butter, expecting the murder weapon to have melted by the time police arrived. From AFP:

But a post-mortem found remains of the butter in the airways of Calogero Lo Cocco and the pair were unmasked, the paper said…

(Their claim was that) he had arrived drunk and attacked them, forcing them to tie him up, when he had suddenly collapsed and died.

"Sicily couple murdered man with butter"