French comedian, Dieudonné M'bala M'bala, was detained for questioning on Wednesday for writing on his Facebook account he felt "Charlie Coulibaly," a word play combining the widespread "I am Charlie" vigil slogan and the name of one of the three gunmen. More than 3.7 million people marched through the streets of France on Sunday, many of them holding "I am Charlie" signs to honor the memory of the Charlie Hebdo journalists, policemen and kosher shop clients killed by Islamist gunmen last week.