Can I find what computer (not IP address) a facebook post originated from?

[T Mc]

So I think my cousin stole my grandmothers laptop computer, I confronted him and he denied it. I'm not sure if my mother or grandmother used it to post on facebook or not (my mom, who uses facebook, usually uses another computer). But if either of them had, is there a way to identify this information? Thanks for any help or suggestions I can get.

[Light Cloud]

I don't believe even Facebook (or any web server) can tell which computer sends it a request, although they do know the IP. Facebook is unlikely to give anyone IP address information unless they're legally required to though.

[Jawsome²]

Impossible...
websites have no correlation with the pc-name and the website your on so no

My computer has the BIOS auto temp. turned off and Magic packets turned on... if its ever stolen than I can turn it on raise the temp till it self destructs or catches something on fire