Because there has been very narrow opinions voiced regarding this incident i guess i should add my 2 cents..
Firstly i don't know you personally Tony or your animal. But as Jamie said retained egg removal is a fairly straight forward veterinary procedure and is virtually painless for the animal if as previously stated they have not adhered to the oviductal lining. If they have surgical removal is necassary. Attempting to remove retained eggs by manual manipulation shouldnt be done by anyone inexperianced. Your female has died undoubtedly because of your intervention. The brutality your female suffered, to me, is virtually Animal Cruelty. Animal cruelty is defined :
* Cruelty to animals is the infliction of suffering or harm upon animals, other than humans, for purposes other than self-defense. More narrowly, it can be harm for specific gain, such as killing animals for food or fur use. Diverging viewpoints are held by jurisdictions throughout the world. Animal cruelty generally falls into one of three categories: neglect, intentional cruelty or sexual abuse.
I high lighted neglect as i believe this is what this incident falls into. Failing to provide your captive animal with necassary veterinary treatment. There has been threads posted detailing retained egg removal, and yes it can be done by those who are experianced. But the fact vet treatment was not sought after your self attempted removal, with the animals reproductive organs hanging out is animal cruelty and utter brutality.