 FRELIMO attack groups had also begun to grow in size to include over 100 soldiers in certain cases , and the insurgents also began to accept women fighters into their ranks . On either October 10 or October 11 , 1966 , on returning to Tanzania after inspecting the front lines , <unk> Samuel <unk> was shot dead by Lourenço <unk> , a fellow FRELIMO guerrilla who was said to be in the employ of the Portuguese . 
