All involved in this question live in Illinois. My uncle had an account in his name with myself as named beneficiary of $100k -& noted POD.

My cousin was the financial POA of said uncle. The cousin closed the account that had me as beneficary/ POD even though my uncle had an additional +/-$300K in other accounts to pay any outstanding and future bills. She did this within the past 6 to 8 weeks and my uncle died a week ago. She did NOT close the other account of $30K that named BOTH her & I as beneficiaries/POD. Do I have any legal basis for recovery of the $100K?