Someone stole an old notebook from the attic, how can I find out who it was?

There are a total of 16 apartments in this residential building.
Each apartment has a small compartment in the attic which is lockable.
I once forgot to close the door off, it seems someone took advantage and stole an old notebook out.
Battery + charger he has not taken, he probably did not find the fast because it was in another box, there was no hard drive in it.
Value of the notebook today about 150 euro
I have not found my old notebook on ebay yet…
I can exclude 3 apartments from the total of 16 apartments, because I can't imagine that a retiree does so.

That's why the question.

Not at all. I do not think you have a realistic chance of finding out if it's not coincidence that comes to your aid.

And in the end… Sure you get 150 for that thing? Without battery and plate? Apart from the principle and understandable anger, actually, the I… Ot, just took the trouble to dispose of the thing…

Slip into the staircase. Please put the notebook where you found it. Thank you.

It worked for us. It was not a notebook, but the stolen goods were back the next day.

I find it good.

The experience says:

To 50% you were it yourself. You misplaced it and then forgot it.

To 40% it was someone from your family. Your little brother has probably thought, Hm nice, small notebook. I'll take it.

And only 10% of it was someone else. But finding it is futile.

It is worth a try.