Found a iphone 4 verizon company?

I found a verizon iphone 4 and its brand new but i want to keep it please tell me what to do its under his number still

Go to the store and tell them

You should definently give it back

You know they can do a remote lock on the device and gps locate it?

goto setting get the imei number and activate it on page plus online

page plus use's verizon towers but has prepaid rate lower then verizon directly