I say yes murder, if you’re carrying a knife surely you are anticipating using it therefore it would seem to me to be premeditated or a considered option.
Expecting you might use the knife and intending to use it are different things. Using the knife and intending to kill someone with it are different things too. Death being the result of someones actions isn’t necessarily murder.
Its a pity these distinctions are too subtle for so many people – we have murder on the news, in the papers, dramas, novels, films and theatre pretty much daily – our culture is soaked in it – and yet it seems to be a struggle for many people to understand what is murder and what isn’t.