The information that you are withholding, could help determine a short, useful description of the assailant. Thus, this information could prove useful when helping create a diagnosis for your problem. Do not be rude, they were simple questions. You could have at least politely just said "Sorry, at this time, I do not wish to discuss the details behind the theft of the laptop", for either personal or embarressing reasons, it doesn't give you the right to freak out when someone tries to help you, and that is the exact reason everyone here has attempted to post. Im sorry, you cant release the information, but sometimes its better to be calm and collected about some issues, and freaking out isnt going to help anyone, but raise tension, frustration levels, and eventually get you in trouble on the forums.
As for help, there isnt much you can do other than wait for the authorities to recover the laptop, and plan out your defensive plan when you get it back. Sadly, its the truth. As said above, a BIOS level password can be good, but like others said, you have to be careful, passwords make thieves think that wiping fixes everything. Even if a hard drive is wiped, or the information deleted (some thieves are too young or do not know enough about computers to do a proper wipe, other than just deleting information on the computer) can be recovered if not completely written over by other data after being deleted. If it is an SSD......... Well, most of that data cant be successfully recovered, as when that data is deleted/wiped, it normally is just a phantom image left over until the space is needed by other data. Hence why the government loves HDDs
Hope your father can get his laptop back successfully, and the thief punished for his crime.