78 year old arrested for murder of burglar, *Update: Cleared of all charge but still faces strife,

[SuperNova]

I don't see why they arrested him on a murder charge. Isn't murder specifically premeditated?
If they charge him at all, it should be a manslaughter charge.
It doesn't seem that at any point the elderly man specifically planned to murder the burglar. Unless there's a piece of information withheld, like if the burglar had like 48 stabwounds or something.

Edit: Ah, I see the charges were drooped. Anything else would have been surprising.