Well, there's no central database where you can plug in information and look it up, if that's what you're asking.
Anyone can file a claim, but only the executor of the estate and the named beneficiary can find out who the beneficiary is. The problem is, finding the policy number and insurance company. You really have to do this by either going through the valuable papers of the deceased, or getting copies of their bank records and cancelled checks to find out which insurance company they have been paying.
If you think there's a RECENT policy, you can also pay a $75 fee, and do a search for APPLICATIONS. This tells you if there have been any applications for the person in the past ten years. First you pay the fee, then they tell you "yes, applications have gone to these insurance companies" or "no applications filed". The application does NOT tell you if a policy was ever issued.
agent, 21+ years