if dracula is sucking the blood of his vistcms, would it be called homicide or what??

It's homicide if it kills the victim.

But with dracula, he attacks Lucy she turns into a vampire?? is that homicide?

Did Lucy die?

well after she turns into a vampire her friends and husband had to strike a stake through her heart, in which she dies and stops being a vampire

Yep! She was dead! This is a homicide case.

However, Dracula was not the murderer. Lucy's friends and family killed her.

Get a definition of vampire.