sentences:  Emil Guillermo's cousin, 26-year-old Stephen Guillermo, was fatally shot in the Mission District in San Francisco on May 3, 2014.Stephen, who was drunk and unarmed, got off the elevator on the wrong floor of his apartment building and entered an apartment identical to his own but two floors below.He walked to the door that had the same number of his apartment, struggled with the doorknob, but managed to get inside.