Can sihr (witchcraft, magic) kill?

i would like information on majic (jadoo) what are the consequences
and can people use it to kill people.
Praise be to Allaah.
Yes, there is sihr that cankill. When discussing different forms of
murder the scholars have mentioned that theperson who kills anotherby
means of a kind of sihr that usually kills should be executed (qisaas
– retaliation), because he has killed by means of something
thatusually kills. Ibn Qudaamah said in al-Mughni (9/330): "The sixth
kind: if he killed him by means of a kind of sihr that usually kills,
then he has to be executed, because he has killed by means of
something that usually kills, like killing by use ofa knife. If he
killed by means of something thatdoes not usually kill or something
that sometimes kills and sometimes does not, then he has to pay
diyah(blood-money), but qisaas is not required, because he intended to
do harm, and it is akin tobeating someone with a stick (which may or
may not kill)."
The ruling concerning the saahir (practitioner of sihr) in
al-Mawsoo'ah al-Fiqhiyyah (24/267) says that in the case where he
killed a personby means of his sihr… the majority say that killing by
means of sihr may be done deliberately, in which case qisaas is
required. According to the Maalikis, evidence or a confession is
required. According to the Shaafi'is, if the person whom the
practitioner of sihr killed was his equal , then qisaas is required if
the killing was deliberate, which may be proven by a confession on the
part ofthe saahir, such as his saying "I killed him by means of my
sihr", or "I killed him with this type of thing", supported by the
testimony of two reliable witnesses who have practised sihr in the
past but have now repented, who can confirm that this kind of sihr
usually kills. If it is a type that does not usually kill, then the
matter is more akin to manslaughter.
And Allaah knows best.
Islam Q&A
Sheikh Muhammed Salih Al-Munajjid