How to find the address of the Ble beacon events?

[Kryptons]

Beacons are advertising some data packets.

From that data packet I have to extract the RSSI value. for that I used the following command.

rssi = *(uint8_t*) (adv_report_data + le_advertising_event->Advertising_Report[0].Length_Data);

It worked well for only one event is going. But if there multiple events are on going how to find the RSSI for each signal w.r.t their address?