Quote Originally Posted by ruccus
I think the rule is that the person who kills the kishin has the right to eat the souls. Otherwise, they cannot eat the souls. Just like Soul Eater's souls were confiscated at the end of Ep 1 because he ate the "magic cat's" soul.
nope his were taken away because to make a Death Scythe you need to eat exactly 99 "evil human" souls and the 100th must be a witches soul. You don't get a second chance at the 100th if you screw it up you must start over.

Because a Cats soul is NOT a witch soul the other souls were confiscated it had nothing to do with who killed who. Plus the Cat was killed it just happens to have more lives.