Lloyd was friends with Gene Porter. Some time after the Patriots came to town, he became infected with Typhus for being an undesirable and the Patriots took him to a quarantine camp outside of town. He later died from infection. (Mis Dos Padres)
After the Patriots infected him with typhus for being an undesirable, it was suggested that he was epileptic, because he was friends with Gene Porter, and he was not bipolar or an alcoholic like Rachel Matheson mentioned. Bipolar disorder and alcoholism can sometimes make people violent.