Welcome to the forums
I'm thinking there are about three ways to approach getting the slide off, Here they are in no specific order:
1. Remove the frame's slide plate: Remove the screw (you will need a T5 driver to do this), then carefully pry the side plate off. There is a ball and socket connector under the plate and the front of the plate slide under the frame.
With the plate off, see if the trigger bar spring is in place.
If the spring looks good, check to see if the leg of the trigger bar is intact and properly positioned.
You will need to rotate the cocking cam to get the slide off.
Also give this thread a look (particularly, the last couple of pages): http://www.kahrtalk.com/showthread.php?33312-Quarantine-Repairs-on-CW9
2. Remove the striker assembly. It's much easier to do with the slide off, but can be done with the slide locked back.
http://naws.com/Kahr_Slide.pdf
Go to about the 4:00 mark
https://www.youtube.com/watch?v=mi3VFRll2L4&t=60s
3. Make a tool and slide it under the rear of the slide. Then fish for the lobe of the cocking cam, then try to pull the lobe rearward and down while pulling the slide forward and off the frame.
Personally, I'd go with #1 because you will need to remove the side pale at some point and it's the least frustrating option (even though you need the small Torx driver).
Regards,
Greg