I'm sorry to say this but, you drowned them.
I'm not a fan of "soaking" as you can get exactly what happened to you...
Next thing is; NEVER use distilled water to soak in. It contains little to no dissolved oxygen. The same can be true for any water you let "sit" out and not run a "bubbler" in.
The other problem you had is you let them sit in water longer then 24hrs. To ME that's just asking for failure....
When I pop seeds, I do the straight paper towel method.
The other thing I like to do is the old school H202 (hydrogen peroxide) added to my water trick......I remember my parents doing this when I was a little fella, for hard to germinate seeds that take longer soaks like Beets.....I still do it today.
Take 1 cup of tap water and add 1-1/2 tsp of house hold 3% Peroxide to the water.
Wet your paper towels to nicely damp - NOT dripping wet (wring them out a bit)
fold so it fits a Rubber Maid or Tupperware, even an old butter tub and place your seeds in it. Fold over the PT and place in a warm (not hot - over 90) place.
You should have popped seeds in 24-48 hrs!
Good Luck