How do they die?? I mean technically, they should head to graveyard after hunger/health point reaching 0 right? I testing on one but don't work that way...why is that??
Especially while some just randomly headed to graveyard.
They need to be at the "Dying" state for several days.
http://www.rescreatu.com/faq.php#5
There it is in the FAQ :). If you have any more questions, read through it and you might find a quicker answer than posting on the forums. To reach it, just click Help on any non-forum page. It is to your left under the advertisement.