French police arrest Muslim man over death threats against teacher

French police have arrested a Muslim who sent death threats to philosphy teacher Robert Redeker. Mr. Redeker is under 'round the clock protection after an article he wrote was published on 19 September in Le Figaro. In the article, Mr. Redeker was critical of Islam:

In it he described the Koran as a "book of extraordinary violence" and Islam as "a religion which ... exalts violence and hate"

[ ... ]

Likening Islam to communism, Redeker said that "violence and intimidation are the methods used by an expansionist ideology ... to impose its leaden cloak on the world".

According to expatica.com's article on the arrest:

Though a practising Muslim, the suspect apparently has no links to Islamic extremism, according to police who said he acted alone out of "hatred" for the author.

And that's the most disturbing part. If organized groups like al-Qaeda and others represent a "tiny minority" of Muslims, just how many of the "vast majority" are like this guy?