Sorry for you loss. Did you do any research prior to "rescuing" them? Were you temperature and humidity appropriopriate?

Another example of why ball pythons should not be housed together:
Later that day 2 were regurgitated...i didnt see who did it but again i assumed it was the big guy. Then this morning i found little guy dead!! I'm so sad. I guess it was him who had been doing the regurgitation all along...this means he hadnt eaten in months.
And another:
I should have fed them seperately so i could track who did what (what i used to do until i got lazy and just fed them together) .

I should have paid more attention to them. Now squeezys dead
Are you suprised that the smaller one died?

and Kurtz is all alone.
That's fine. He's probably happier now that he's alone. Snakes are solitary creatures that do not enjoy the company of other snakes.

My advice is to go do some serious research about taking care of the remaining snake. The fact that you are here is a huge stride in doing so and you will find a lot of helpful people and resources on this site.