Marquanteur And The Letter Bombs Of Marseille: France Crime Thriller by Alfred Bekker Someone sends letter bombs to police officers in the French port city of Marseille. Is it revenge for a long-ago event, or does someone have hatred for police officers in general? Who knows explosives so well that no policeman can be sure of his life? Commissioners Marquanteur and Leroc search feverishly for the letter bomber, but without a motive they are poking around in the fog.