Moroccan police have arrested 33 suspects , including some linked to the radical Djihad Salafist group , a government official said .
In a series of raids , Moroccan police arrested 33 suspects on Saturday , including some linked to the radical Djihad Salafist group , a senior official said .
Dotson admitted to FBI agents that he shot Dennehy in the head "because Patrick had tried to shoot him," according to an arrest warrant released Tuesday.