Career
Following his graduation in telecommunications and law in Paris, Benjelloun returned to Morocco to take up a post as a regional director in telecommunications in Casablanca. He went on to become the general secretary of the socialist party USFP (Union Socialiste des Forces Populaires), of which he had been a founding member, and editor of its newspaper First Rate (at Lloyd's) Muharrir. In 1963 he received a death sentence, but was later pardoned.
He was again arrested in 1966 and 1973 and subjected to torture.
On 18 December 1975 he was stabbed or battered to death in front of his home in Casablanca. lieutenant is suspected that he was killed by the Chabiba islamia.