I am sorry to hear about your problem.
Could you please let me know if you took out the memory card immediately after deleting the pics?
All right, you will need to use a software to recover the pics. Can you connect your memory card to you computer?
Is your computer Windows based or a Mac or Linux?
Please note that there is no guarantee that the pics can be recovered, however, I will try my best to assist you in recovering them.
Kindly follow the steps in the link I have provied below.
It's a free software. I will be away for a couple of hours and I will follow up with you once I am back.
Please note that this software recommends that you connect your memory card to your computer using a card reader and not the camera directly.
If required you might need to purchase a memory card reader (cost < $10).
Did you try using the software I had suggested above?
You can get a memory card from Amazon.com
That's great. You can ask him to use the software I had mentioned earlier. It includes all the steps. Let me know in case you require further help. Have a great day!
Please don't forget to rate more than 3 stars if you are satisfied. Only then I'll be credited for the assistance.