Whitechapel murder: Faith 'healer' stabbed to death at black magic treatment centre | Crime | News | London Evening Standard

Whether this man's "profession" had any impetus on the crime remains to be determined.  But what is at issue, an unlicensed practitioner who was treating people who believe themselves possessed by ‘jinns’.  Just as with "christianized"  so-called demonologists or scam artists like Bob Larson and their deliverance ministries, one of the primary problems is that there is a serious chance that those "possessed" they are suffering from some mental instability.

A faith “healer” was stabbed to death at a spiritual centre for treating black magic and demonic possession in East London.

Father-of-three Zakariyya Islam was killed at the Ruqya Therapy Centre’s base in Whitechapel.
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Mr Islam was a co-founder of the Ruqya centre, based in a complex of small business offices in Greatorex Street, and had been treating people who believe themselves possessed by ‘jinns’, or spirit, and black magic for more than a decade.

The centre, which was sealed off by police who were carrying out forensic searches, also offers advice on sorcery, witchcraft and “evil eye”.
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Last year he hosted a conference on “The World of Jinns” at the East London Mosque which he visited regularly.

Whitechapel murder: Faith 'healer' stabbed to death at black magic treatment centre | Crime | News | London Evening Standard