You can't. Most if not all wallet software don't keep logs as to who accesses recovery seeds or mnemonic phrases. (as would be stupid if not impossible)

(I'm assuming you're talking about Electrum here?)

The most you can do is see where your funds went using a third-party tool such as Walletexplorer

If you're lucky and he send them to a regulated exchange, (coinbase et al), you can file a police report and they'll probably someday hand over the KYC data + IP adresses.

Don't get your hopes up though, your funds are gone.