Translation:I do not know whether she used a knife or a bottle.
The outside security camera recorded she leaving the house with a knife in her boots. That's clear. But I believe this was her intention. Some small pieces of broken glass were also found in the kitchen. There was a fight. She committed the murder with a bottle, cleaned the mess, took a clean a knife and put it in her boot, then ran away. She reasoned that if she were caught, the DNA analysis of the knife would return null results. Exactly where we are now...
As you mention it, I really miss the details about the wounds. If I want to read a good Italian detective story, I must know about the wound types and how to ask about the blood type, and if they've found other people's DNA under the nails, do we have bruises, broken bones, and what is about rigor mortis and how many cigar ashes could we find beside the hedge. This storyline is rather incomplete, Duo!