The man who stabbed four people to death in the Paris police headquarters was a convert to Islam enraged by a reprimand from a female colleague, according to reports.

IT worker Michael Harpon, 45, is said to have killed his female supervisor — who had previously reprimanded him for refusing to deal with women — with a ceramic blade, before going on to attack several other police personnel, leaving a total of four dead and one critically wounded before he was fatally shot in what has been described as a self-defence situation.

“I know this man. He worked in IT and he had long-running problems with his superior. He stabbed her first and then colleagues intervened and were stabbed as well. I am told he then got hold of a firearm,” confirmed Christophe Crépin, a spokesman for a French police union, confirmed in comments to The Telegraph.

Police Officer Stabbed During Terror Arrest In Paris https://t.co/RDJ6UH2V3b pic.twitter.com/pUJSnFvJ0h — Breitbart London (@BreitbartLondon) September 9, 2016

The Paris prosecutor is treating the killings as ordinary crime rather than terrorism, although counter-terrorism officers have raided the home of Harpon, who was deaf and originally from Martinique in the Carribean, and arrested his wife Iham.

“An investigation has been launched into a grudge the assailant may have held against his colleagues, but terrorism cannot be ruled out,” according to a source quoted by MailOnline.

“Many of those involved in similar attacks on the police have been Muslim converts influenced by radical terrorist groups.”

French Police Chief Stabbed To Death in Street https://t.co/ReZiwbwuPA — Breitbart London (@BreitbartLondon) September 28, 2018

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